Only between Palm Beach and Miami could you find mobile homes going for almost $1 million—aside from perhaps Malibu.

Briny Breezes—the trailer park founded by Michigan Businessman Ward Miller in the 1920s—has recently turned down an offer of more than $500 million for the 43-acre parcel located on the barrier island south of Palm Beach and situated between 630 feet of oceanfront beach property and 1,200 feet of the Intracoastal Waterway. High-end trailer parks have become something of an emerging real estate trend—trailers at the Paradise Cove Mobile Home Park in Malibu now sell for up to $5 million (stars like Sarah Paulson, Matthew McConaughey, and Stevie Nicks have all purchased properties in the park). According to a local resident, Briny Breezes will accept no less than $1 billion.

Offered by Miller for $2,000-2,500 per lot in the ’50s, campers got together to purchase the park and incorporate it as its own town in 1963, complete with a post office, hair salon, restaurant, and gas station.

Now, single bedroom mobile homes at Briny Breezes are offered by individual owners for upwards of $750K. Amenities include membership to the charming Beach Club (dues are $3 per year), a waterfront pool and cabana which overlooks its marina, swimming, boating, fishing, a gym (dues are $50 per year), duplicate bridge, billiards, ping pong, bingo, shuffle board, Zumba, art classes, woodworking, performing arts, music, and garden clubs—and most recently, surfing lessons, spurred by the popularity of its great local surf shop.