If I was him, the FIRST thing I would have done was to build the fence. If one of the homeowner's kids fell in that lake and drowned how long do you think it would take for them to look for a scapegoat to sue?Bingo.
Respecting this guy's property rights is like respecting the free speech of extremists: if we don't, disrespect of ours is next.
The homeowners are simply the equivalent of the Florida voters who didn't bother to check their ballot and now claim it's "unfair" that their votes allegedly didn't count.
-Eric
Ah, but then we're facing the immutable libertarian law which states that prohibition fosters allurement. In order to discourage use of the lake, the owner needs to get rid of the fence and instead place inviting enticements, such as easy parking access and paved walkways. Then no one will use the lake.