That image was took on the back side of the Mama Han boat, where 3 girls cooked the food for the 40/50 people on board. There were salads, vegetables, fruits, grilled fish, rice, many rice, grilled meat and beers....too much beers.
Here there is the story of the Mama Han's Boat Trip.
In the Workshop there is a view of the Mama Han's Open Air Floating Restaurant
*Scanned image*