How important is it to do some research on the wrecks before we come to Truk?
Personally I think that by doing some research on the wrecks before your trip will give you more enjoyment knowing what you are diving. All the sites wre fully briefed before you dive them but to be honest all the wrecks fall into either the “morning Maru” or “afternoon Maru”! So by doing some research you will really apprecite the wrecks so much more. You can have a read of the history here on this link or even better purchase Dan Baileys book WWII Shipwrecks of Truk Lagoon directly from Dans site. This publication is by far the best resourse I have ever seen. We have a book that stays in Truk for people to reference too.
