Plat Bay is tucked away between Mlini Bay & Cavtat Bay, in fact it's really the next bay along from Mlini Bay - it has lovely bays and beaches with pretty views and a water taxi service to Dubrovnik Old Town.
Water Taxi's (Boat Line) from Dubrovnik Old Town:
Why not hop on a boat down the coast to Mlini Bay or Cavtat Bay? Click here for Timetable for Water Taxi's (Boat Line) from Dubrovnik Old Town Port
There is usually one boat back from Dubrovnik to Mlini Bay & Cavtat Bay in the late evening, but only during peak season – July, August.
*If you are looking at the timetable before the season starts, be aware that the operator may decide to add more times to the schedule, but they only decide this at the beginning of summer. So please be aware that this schedule might change.
You can also cross to Lokrum Island, for day trips, from the Dubrovnik Old Town Port (buy tickets at Old Town Port).