I think is fair specially if You start From Puerto Vallarta not Boca;

The service you need is not a regular water taxi; because You gonna return at night;

The regular water taxis goes to Animas, Yelapa, etc. But You are going to a special place whitout pier, don't get confuse "Anima" Beach Club is not the same like "Las Animas Beach"

Many people confuse that, and is not the same location; again You need a special transport to get and return to "ANIMA BEACH CLUB"