I have a friend who grew up on the coast and her family always sailed for fun.

When she got divorced she bought a sailboat and traveled for a bit in it. She then parked it at a marina and lived in it for so many years close to her kids and grandkids. She paid $100K for boat and her marina fees were $300/month. The boat was paid off with the divorce settlement.

The cheapest 1 bedroom apartment to rent nearby was $3500/month for less square footage than her boat. The cheapest small house was around $1,000,000 or around $6000/ month at the time. The homes around the marina were all priced at several million dollars.