The most important is your life vest, in case you are thrown into the water. Ideally, you should dress in layers to be prepared for temperature changes.
Sand fleas can be identified by small bumps and v-shapes, so once you've spotted a colony, grab a big handful of sand and set it on a bucket lid. Sift...
If you can't, simply wear the glasses, and bring a little notepad. Even sticky notes would work for a to-do list. You could write a to-do list in your free...
There's not really an exact answer for that. I would say, though, that you should invest in something that's personal to your wedding style, or sentimental that represents your relationship.
Try choosing an activity or somewhere outdoors for your date. That way, there will be things happening around you for the two of you to talk about, which could help...