The tour is by train, not by canoe. Everyone will stay on the boat all morning, passing the first 2 islands will go to the sea to dive to see the coral and then get on the boat again. The whole train only has 1 WC for bathing and changing, so it's quite convenient. Lunch is also on board. In the afternoon, the cloud will recede and everyone will be able to go ashore. Onshore services including loungers and banana boats are chargeable. This tour will not have flycam photography on the Sup board like other tours.
In short, I find the tour suitable for those who like to watch coral and not seasick.