THREE MILE BAY â Thereâs a battle brewing between the town of Lyme and a land developer who plans to build an RV park and marina along the shoreline in this small lakeside hamlet. In January 2018, Jeffrey L. Cohen bought a roughly 45-acre plot of undeveloped waterfront land on Route 12E in the hamlet of Three Mile Bay, on the northeastern side of the town of Lyme. In August 2018, Mr. Cohen and his wife Marla developed a plan to build a 203-site RV park with a marina, 10 houses and eight multi-unit rental buildings between the highway and the cove for which Three Mile Bay is named.