On the Baconao stretch of the coast, there is the aquarium and dolphinarium Acuario de Baconao. The show is of a high standard, although controversial as Cuba captures wild dolphins for its shows and for export. The aquarium has many species of fish as well as turtle and sharks (feeding time is spectacular). There is a basic refreshment bar where you can get a sandwich, and a beach, with trees for shade but no facilities.
do you know Baconao well?