At the moment I'm looking at lots of websites but a sharp site and glossy pictures don't necessarily point at experienced and capable instructors.
When looking for good training on sea planes you should look for the most experienced sea plane pilot that has actually worked in the industry flying them for a living.
The description " instructor " does not give any guarantee of quality training if said instructor is working for a flight school and has never worked as a sea plane pilot.
In Canada you do not have to hold a Transport Canada instructor rating to give sea plane training and ratings..
There are a few really good teachers around so look carefully and ask for proof of experience and recommendations from former students.
Remember it is your money and you must get good return for your money.