We are sailing on the Westerdam this Oct. to the Western Caribbean. I went to book our excursions online and there were no dives listed for Grand Cayman. The excursion brochure list a dive but it wasn't listed online. The dive was offered last year when we were on the Zuiderdam. Would appreciate any info on booking independently if HAL isn't going to offer a dive.
I recommend www.neptunesdivers.com for a boat dive.
You can easily shore dive at Eden Rock. It is only a few blocks away from where the tenders dock and you can easily walk there. There are 2 dive shops near by where you can either rent tanks or go for a guided dive.