Cross-river ferries run throughout the day to Ko Kret’s Wat Poramaiyikawas pier from Wat Sanam Nuea, a 10-minute walk or 20 baht motorbike taxi ride from the main Pak Kret pier. The five-minute trip across the river costs two baht. You can also arrange for a boat to take you directly to Ko Kret from the main Pak Kret pier.