Could be used for a waterfront or seafood restaurant, but also a seaside resort, hotel, scuba diving business, fishing and cruises, underwater photography, children's swimming lessons, water slide amusement parks, beach clothing and toy products, services focused on social events where travelers and beachgoers meets parties that provide cabanas, tiki bars, clam bakes, bonfires on the beach, etc., as well as tour companies or other activities in areas with beaches or bodies of water. Lots of possibilities. Frolic means having fun usually socially with other people frolicking playing hanging out together. And "fin" represents a part of a fish, but could also be a diver's or swimmers fin or flipper.
a Bars business, a Social Media business, an Event Planning business, a Restaurant and more!