My girlfriend and I just got back from a vacation in Central America. There are river of mineral water that runs hot from the geothermal vent in the volcano.
We went down to the gate leading to the hot springs around 9:00 or so. It gets completely dark around 7 here. We weren't sure just how accessible or busy the springs would be at this hour. When we arrived there weren't many cars parked around the gate but a few.
We throw a couple cans of the local brew into my backpack along with the maglite. we throw off our shirts in the car and walk down the path in our bathing suits.
When we get there it's pretty dark but the locals light candles around the edges of the river propped up on rocks. It's actually kind of romantic.
We lounge around for a while drinking our suds and watching the happy families frolick around. Another group of people have posted up near the edge with a bluetooth speaker and some beer playing a little reggae. People seem to love Marley in this country.