One of the parks in Patzcuaro has a breaker box at each site. It is a 15 amp breaker. The wiring is barely adequate so you cannot use a lot of electricity. Cheap way to prevent people from using electric heaters. Water lines are cheap to run. A number of years ago I sent a letter to the tourism secretary. At that time the Government Mexico was promoting micro industries. I suggested that schools could open small over night spaces on the school grounds. They would be fenced with one water spigot. No electricity. Just a safe place to stay. The teachers could get the Kids to do some folkloric dancing and singing if a few rigs were present. Then pass around a collection plate. Rates would be minimal. Maybe $5.00 a nite. RV'rs would have a safe place to stay and the schools could earn a few $$. Of course I never heard back!
Moisheh