On Tahiti Explorer this was a hot topic a year ago. Then it went to CC.
You really don't need it on Tahaa but it was really nice to have at the beach in Bora Bora.
We had 10 tote and floats and only filled 5 because of how difficult they were to fill.
A couple of others had very inexpensive floats that you could blow up real easy and they actually worked better and were much lighter.
If you can find these at Wal Mart K Mart etc great. If not Quality Trading was the cheapest price I found on the internet. Of course shipping cost more than the product!!