Saint Joseph Sound is a shallow, protected saltwater bay on Florida's Gulf Coast, offering calm, sheltered paddling conditions suitable for beginners. The sound is characterized by grass flats and mangrove shorelines, providing a sanctuary for wildlife accessible primarily by kayak or paddleboard. A notable geographical feature is a chain of six spoil islands, created from dredged material, spaced about half a mile apart running north from the Dunedin-Honeymoon Island causeway. These islands have cleared areas with rock fire pits and picnic tables, making them destinations for day trips or camping. The sound connects to the Gulf of Mexico via Hurricane Pass near Honeymoon Island, where paddlers can encounter larger waves.

Multiple public access points provide launches into the sound. The Dunedin Causeway PWC Launch Beach offers free beach access with parking from 5:00 AM to 11:00 PM. Nearby, Sail Honeymoon operates a kayak rental facility on the causeway. The Dunedin Municipal Marina provides a boat ramp launch for a fee. To the north, H.S. Pop Stansell Memorial Park in Palm Harbor offers a free beach launch into Sutherland Bayou, which opens into the sound, featuring protected, mangrove-lined channels. Paddling conditions are generally tidal with a modest range, and oyster shells and rocks are exposed along the causeway and islands during low tide, posing a hazard to boats and feet. The primary safety consideration is boat traffic, particularly when crossing the maintained channel that runs past the spoil islands; paddlers should exercise extreme caution and wait for the channel to be completely clear before crossing. Afternoon southwest sea breezes are common, but the sound's sheltered nature typically keeps wave action minimal away from the pass. The recommended paddling season is year-round.