Bellamar Caves
Varadero, Cuba
Visit the oldest tourist attraction in Cuba, open to visitors since the 1860s. The caves are extensive and impressive. There are quite a few steps down into the cave and it is slightly damp and rough underfoot, and also very warm.
An old tower of some sort, with no description anywhere. There's stairs to the top, but they're very sketchy.
Ambrosia Cave
Multi-room cave with ancient drawings and lots of bats.