Two-and-a-half hours after we arrived, a group of 20 arrived from Thailand. The boat filled quickly, but there was still enough room for a seat each. I calculated you could put 72 on the bench seats they had set up. There were extra plastic chairs to bring the numbers to over 100. We finally bashed and scrapped our way out of the boat scrum before midday, to a muted "hurrah" from us tourists.