Small, quiet and easy to miss, this Depot Street beach has no staffed lot, which keeps it from ever really filling up.
What to expect
Parking
Paid lot no on-site daily cash sales
Swimming
Allowed water tested by the state
Getting in
Parking
Paid lot
Costno on-site daily cash salesStickersticker parking only where available
Depot St
Details unconfirmed
Access points along this beach
Common questions
Is Sullivan in Dennis open today?
Open, no advisory on record in the latest MA DPH posting (updated 2026-07-16). MA DPH is the authority. Check the status the morning you go.
Is there parking at Sullivan, and what does it cost?
Paid lot (no on-site daily cash sales). Depot St
What rules should I know at Sullivan?
Dogs prohibited Memorial Day weekend through Labor Day, and whenever piping plovers are nesting.
Been here? Help keep it current.
Prices, hours, and facilities change. A quick note keeps the next visitor from guessing.