This 1930 Waterfront Estate in Naples, Maine, Featuring 2,500 Feet of Shoreline, 72 Boat Slips, and a Grandfathered Infrastructure

Daniel Whitaker

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September 30, 2026

Property Owner of Oberg Insurance & Real Estate Agency, Inc.

This majestic 117± acre estate on Long Lake, operated as Colonial Mast Campground for 48 years, offers over 2,500 feet of waterfront and extensive amenities, including 72 boat slips and an indoor pool. Constructed in the early 20th century, the property showcases charming architectural features typical of its era and serves as a hub for recreational activities in Maine’s Lakes Region. Located in Naples, just 45 minutes from Portland, it is listed for $9.8 million, with a potential for residential development or as a luxurious family compound. With more than 7,000 feet of road frontage, this rare offering is unmatched in access and development possibilities, presenting a unique investment opportunity.

Lakefront Deck

Property Owner of Oberg Insurance & Real Estate Agency, Inc.

A serene deck space extends over tranquil waters, surrounded by lush greenery. Rustic wooden planks form the deck, complemented by sturdy green rocking chairs arranged to face the lake, ideal for relaxation. In the center, a natural tree stump serves as a unique table, adorned with ferns, enhancing the organic feel. The soothing blue sky dotted with soft clouds reflects off the water’s surface, creating a picturesque backdrop. A gravelly path leads from the sandy shore to the deck, seamlessly blending with the natural landscape. Overall, this space invites comfort and contemplation by the water.

Outdoor Deck

Property Owner of Oberg Insurance & Real Estate Agency, Inc.

An inviting outdoor deck features a mix of seating options, including several white wicker chairs adorned with green cushions. The wooden planks of the deck are weathered, complementing the natural surroundings of lush greenery and vibrant flowering plants. A rustic wooden railing provides safety while enhancing the aesthetic. Nearby, a small table and additional chairs offer a cozy spot for gatherings. Tall trees provide shade, with sunlight filtering through the leaves, creating a tranquil atmosphere. The overall layout encourages relaxation and connection with nature, making it an ideal retreat for enjoying the outdoors.

Dock View

Property Owner of Oberg Insurance & Real Estate Agency, Inc.

A serene dock stretches over calm waters, hosting multiple boats securely moored to well-maintained wooden slips. Surrounding the dock, lush greenery and tall trees create a natural border, enhancing the tranquil atmosphere. The clear blue sky reflects on the water’s surface, dotted with fluffy white clouds. Sunlight glistens off the boats, revealing their sleek designs and various colors. The landscape merges harmoniously with the water, showcasing the beauty of nature. This picturesque setting invites relaxation and leisurely boat activities, embodying a peaceful lakeside retreat, perfect for enjoying nature’s tranquility.

Campground Driveway

Property Owner of Oberg Insurance & Real Estate Agency, Inc.

A tranquil dirt pathway winds through a lush green campsite surrounded by towering trees. The area showcases multiple recreational vehicles parked along the sides, each displaying unique colors and designs, complemented by American flags fluttering in the gentle breeze. Sunlight filters through the dense foliage, creating soft patterns of light and shadow on the ground. The scene conveys a sense of serenity and community. To the right, a natural landscape includes scattered rocks and patches of grass, enhancing the rustic charm of the environment, inviting relaxation and connection with nature in this picturesque outdoor setting.

Playground Area

Property Owner of Oberg Insurance & Real Estate Agency, Inc.

An inviting playground sits nestled among vibrant green trees, featuring a sandy area that leads to a volleyball court adorned with a thick net. A wooden play structure, reminiscent of a small house, stands on one side, complete with a slide and stairs, offering children a space for imaginative play. Adjacent, a pirate ship-themed structure captures attention, partly obscured by grass and trees. The surrounding scenery is lush and serene, with various trees towering in the background, creating a tranquil setting. A dirt path meanders through, leading towards parked cars and more recreational spaces, enhancing the area’s family-friendly atmosphere.

Playground Area

Property Owner of Oberg Insurance & Real Estate Agency, Inc.

A vibrant playground set in a natural landscape, featuring a classic swing set with multiple swings suspended from a sturdy, painted metal frame. Adjacent to the swings, a wooden play structure resembling a pirate ship boasts a climbing ladder, slide, and lookout point. The ground is sand-covered, providing a soft landing for children, while an octagonal sandbox invites creative play. Lush greenery surrounds the area, with tall trees and vibrant foliage providing shade and a sense of seclusion. A bright blue sky dotted with fluffy clouds enhances the cheerful atmosphere of this outdoor recreation space.

Exterior View

Property Owner of Oberg Insurance & Real Estate Agency, Inc.

This image showcases a rustic building set amidst lush green trees. The structure features a sloped roof and wooden siding, contributing to its cabin-like charm. A covered porch runs along the front, bordered by planters that burst with colorful flowers. A wooden dining area is positioned outside, complete with sturdy benches and an umbrella providing shade. To the left, a smaller building shares the same earthy tones, adding to the cohesive aesthetic. The vibrant greens of the surrounding forest contrast beautifully with the dark wood of the buildings, creating an inviting and serene atmosphere.

General Store

Property Owner of Oberg Insurance & Real Estate Agency, Inc.

A rustic general store characterized by warm wood paneling and overhead wooden beams. The ceiling features pendant lighting, providing a cozy ambiance. A spacious counter made of richly textured wood serves as a central focal point, bordered by glass display cases showcasing various merchandise. To the left, brightly colored items are neatly organized on shelves, enhancing the inviting atmosphere. A braided rug with a red and cream pattern adds warmth underfoot. Decor elements, including vintage signs and whimsical art, celebrate outdoor adventures, creating an atmosphere that invites exploration and nostalgia for nature lovers.

General Store

Property Owner of Oberg Insurance & Real Estate Agency, Inc.

This cozy general store features warm wooden finishes with a pine ceiling and rich hardwood flooring. Shelves are stocked with an array of snacks, drinks, and camping gear, creating an inviting atmosphere. A large brown bear taxidermy stands proudly on display, adding rustic charm. Adjacent to it, a small cooler stocked with beverages highlights functionality. The furniture includes practical black plastic chairs set around a cozy arrangement, while various plaid clothing hangs on walls, contributing to the overall cabin aesthetic. Natural light brightens the space, making it feel welcoming and homey, perfect for visitors seeking supplies.

Gift Shop

Property Owner of Oberg Insurance & Real Estate Agency, Inc.

This rustic gift shop features warm wooden paneling and flooring, creating a cozy atmosphere. Shelves are filled with a variety of souvenirs and trinkets, showcasing local culture and charm. A mounted bear captures attention, adding to the thematic decor. The display cases are neatly arranged with photos and collectibles, while a woven rug enhances the space with natural tones. Bright recessed lighting illuminates the area effectively, complementing the soft glow from pendant lights above the counter. A welcoming entry door reveals glimpses of lush greenery outside, enhancing the shop’s inviting and rustic aesthetic.

Kitchen Space

Property Owner of Oberg Insurance & Real Estate Agency, Inc.

A cozy kitchen area featuring a mix of rustic and modern elements. The room showcases rich wooden accents with wide windows allowing natural light to illuminate the space. Light-colored cabinetry contrasts with a dark countertop, and open shelving displays an array of spices and utensils. Cream tiles cover the floor, while a vibrant red base adds warmth beneath the work surfaces. Stainless steel appliances, including a microwave and grill, complement the functional layout. Decorative details, like a patterned border above the windows, add charm and character, creating an inviting atmosphere perfect for culinary activities.

Living Room

Property Owner of Oberg Insurance & Real Estate Agency, Inc.

This rustic living room showcases a warm and inviting atmosphere with wood-paneled walls and a high, exposed beam ceiling. A neutral-toned sofa with striped cushions stands prominently in the center, accompanied by wooden armchairs featuring patterned upholstery. A small coffee table rests on a textured area rug, creating a cozy focal point. Various mounted trophies and vintage items adorn the walls, enhancing the cabin feel. An American flag hangs proudly, alongside vintage arcade games. A brick fireplace adds warmth and comfort, complementing the natural wood elements and greenery, inviting relaxation in this charming space.

Game Room

Property Owner of Oberg Insurance & Real Estate Agency, Inc.

A rustic game room featuring a combination of leisure activities. The warm, wooden walls radiate a cozy charm, accented by multiple windows allowing natural light. Exposed beams define the ceiling, enhancing the room’s cabin-like atmosphere. A green felt pool table takes center stage, while a foosball table adds a playful touch nearby. An antique piano sits against a wall adorned with framed outdoor art and vintage ski equipment, creating a nostalgic feel. A black bear mount adds a unique focal point, while a small dining table with wooden chairs invites social interaction. Overall, a welcoming and fun-filled environment.

Game Room

Property Owner of Oberg Insurance & Real Estate Agency, Inc.

This spacious game room features a rustic design with exposed wooden beams and walls clad in warm timber, creating an inviting atmosphere. The flooring is polished wood, enhancing the room’s natural feel. Central to the space is a large wooden dining table surrounded by several classic, ladder-back chairs. Various entertainment options include arcade machines, a foosball table, and a comfortable seating area with plush sofas. Vintage decor, including American flags and framed photographs, adorns the walls. Ample natural light floods in through large windows, contributing to a cheerful ambiance, perfect for social gatherings and leisure activities.

Waterfront View

Property Owner of Oberg Insurance & Real Estate Agency, Inc.

A charming lakeside home nestled among lush greenery and towering trees, showcasing a warm red roofing that contrasts beautifully with the muted gray siding. The structure features expansive glass windows, allowing natural light to flood in while providing serene views of the water. A wooden dock extends from the home into the lake, bordered by smooth stones and vibrant foliage. The tranquil setting is enhanced by the reflective surface of the water, surrounded by verdant landscaping. Sunlight filters through the leaves, creating dappled patterns on the ground, evoking a peaceful retreat atmosphere.

Bathroom Details

Property Owner of Oberg Insurance & Real Estate Agency, Inc.

This rustic bathroom features wooden paneling and an inviting, warm atmosphere. The walls are adorned with natural wood, complemented by white accents and checkered curtains that add a cozy touch. Dual sinks are set into a light-colored countertop, providing ample space for use. A large mirror above the sinks reflects the natural light streaming in through a window. Decorative elements include forest-themed artwork and wooden cutouts of animals, enhancing the cabin feel. The flooring is a rich wooden planking, further adding to the earth-toned palette, creating a welcoming environment that blends functionality with rustic charm.

Garage Exterior

Property Owner of Oberg Insurance & Real Estate Agency, Inc.

The image showcases a rustic garage built with dark wooden siding, harmonizing with its natural surroundings. The structure features an A-frame roof with a green metal covering, complementing the earthy tones of the wood. A large double garage door provides easy access, framed by a wooden porch entryway. Adjacent to the garage, a small shed reflects an older, weathered design, hinting at the property’s historical charm. Lush green foliage surrounds the area, with soft sunlight filtering through the trees, casting playful shadows on the gravel driveway, creating a serene, inviting atmosphere.

Listing Agent: Property Owner of Oberg Insurance & Real Estate Agency, Inc. via Zillow 

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