Wow, what an amazing resource you have put together on your site. The images are fantastic. I really like the way you captured specific behaviour. But it's not just images but explanation and education. This should be the go-to starting point for anyone thinking of going to Tonga. Very well done sir!
By the way, although I have been to Tonga many times for work, including Vava'u, I was never able to time a trip to go diving. But I was extremely fortunate to swim with humpbacks in Niue which is not so far away. So I second your endorsement of such encounters being a seminal experience. Thanks for bringing back those memories.
Thanks a lot for the feedback and the comments - greatly appreciated!