Tour of Semuc Champey
This is a tour run out of el retiro. it begins with a candlelight tour of the grutas de las marias, an underwater river which involves swimming, wading, climbing up waterfalls, and jumping into water in the darkness. next is a jump off a 9m bridge and a float down the river. this is followed with exploration of semuc champey and a climb down to see where the river exits under the pools there.