We do an "away" cookout. The sailors have a day or afternoon- long race to the destination point, often an island. The powerboaters zoom over to join them for cocktails, then burgers, steaks, or whatever on grills at the beach they''re anchored off of. Bunkless powerboaters can can raft up overnight or head back. If you pick a spot on the mainland, boatless people can drive there too!