Reportedly the largest Greek Orthodox festival in the western hemisphere, the Tarpon Springs Epiphany celebration in January has become something of a tourist attraction. The ceremonies begin with a church service at St Nicholas Greek Orthodox church in Tarpon Springs, then there's a procession to the spring for a blessing of the waters. This blessing includes throwing a cross into the water which is then retrieved by young swimmers. The swimmer who retrieves it is said to be blessed for a year. There's a bronze statue memorializing this event outside the church.
Sponge docks is the place which most of the people visit first. It’s only a quarter mile north of the historic district. Here you can eat, shop, take cruises to the Gulf of Mexico, or go deep-sea fishing. Besides numerous shops and restaurants, there are 2 museums here. Coral Sea Aquarium maybe a good place to visit with kids (Dodecanese Boulevard). A scuba diver feeds sharks at 11:30, 1, 2:30, and 4 PM. In my opinion Florida Aquarium in Tampa is much better.
Open daily 10 to 5. Admission fee $4.75 for adults, $4 seniors, $2.75 for kids 3 to 11.
Spongeorama – Admission is free. You can buy a sponge here (but most likely you’ve bought it already on the docks) and watch video about sponge diving (very old and boring). Open 10 to 5.
Every Sunday, from January through May, there's a farmers market at the Meres Municipal Plaza on Tarpon Ave, near downtown. Vendors sell locally grown fruits, vegetables, condiments, and crafts.