The visibility of Samana's transparent
blue waters can range from 100-150 feet.
The sea floor varies broadly from shallow,
reef sites featuring lots of deep undercuts, to
systems honeycombed with large caves, tunnels
and swim-throughs such as those surrounding the small
rock islands of Las Ballenas (The Whales). Beneath the
moderate depths of 30 and 50 feet, their vast collection of
cave and tunnel formations, are numerous.
The Cave Dadu is a must for cave lovers.
To access the cave there's a jungle which goes into a tunnel
ending up in a lake. It's a beautiful cave with a lot of
stalagtites. The entrance has big stalagmites that gives
it the aspect of a big mouth.
Samana is reputed for it's whale
watching during the whale season from December to March.
They can be seen in the protected reef of Banco de la Plata
(Silver bank) just outside Samana. During these months approx.
2000 to 3000 humpback whales migrate from the cold North
into the warm sea in order to mate or to breed.
This is without any doubt a breathtaking spectacle watching
these giants of the sea measuring up to 16m and weighing around
40 tons jumping and diving in the water. Humpback whales are
said to be the most entertaining whales of all, especially during
mating season.
I just wrote a few highligts but you can find
more in the dive centers
websites.