You probably see where I'm going with this: throw a big party/rave in the middle of the frozen lake. The goal would be to keep it on the Canadian side (where I live) but far enough out into the lake that local police have no jurisdiction - IANAL but my primitive thinking was to see if you could situate it where it would require federal intervention, which seems to me unlikely to materialize in time to stop a party.
In any case, we would be in the middle of a very large lake, and I'm not sure that there are any laws preventing throwing a party there in the first place.
Naturally, to be a welcoming environment, a party like this would greatly benefit from a huge bonfire, raising concerns about risks that are less likely when you party on dry land, but I thought it was a fun idea...