Providing you have enough money you can take a boat back to Pak Bara in just 30 minutes. This will cost 400 baht per person plus 50 baht for the longboat out to the speedboat. Boats leave around 11am from the Pansand resort; please ensure you mention at Pansand reception that you are hoping to catch the boat. You can buy tickets at the Marina and Pansand resorts.