Returned to the boat. We set sail for San Cristóbal and I rapidly began to feel ill. Lay down for a while and then went up onto the sun-deck, but that didn't hep. Missed dinner. Later heard that only 6 of the 16 passengers had completed the meal.
Sun 29th: Went ashore after breakfast and to the 'Interpretation Centre' which mainly catalogues the environmental damage that man has brought to the islands over the years. Had a drink and did some shopping with Liam, Nick and Mike.