If you're going diving with a group and not on your own and you don't plan
many dives, rent.  If you have downloadable information from a specific dive
computer you can take that with and use it with rental equipment.  If it's a
dive vacation and that's all you're going to do it's customary to bring your
own equipment - but not required.  Hauling dive equipment when you're
traveling is a burden and if you're not going to use it it's just a waste of
time and effort to haul it around and care for it.

WTF? For 99.99% of all the divers in the world there is no other reason
to own dive equipment.  I happen to be in the 0.01% who live at a dive
destination and dive every weekend and I would never, ever even think
of going somewhere without my dive equipment.

If you're not going to dive it why would you ever own it?

This is one of the most patently ridiculous questions I ever read.

What are your thinking? Of *course* you should take your own equipment.

I must agree with Bullshark, if you are going to one of the finer dive
places around, why not take your gear?

The weather will be really nice (it usually is).  There are plenty of great
dive shops, Buddy,, Captain Don's, Yellow Submarine.

Best dive sites around are 1000 steps, Oil Slick Leap, Witch's Hut (aka
Weber's Joy) to the north and Windsock, Pink Beach to the south.  Karpata at
the far north is a great dive, however, getting in and out can be a
challenge as it can get rather surgey.  You can also jump off any
hotel/resort dock and dive, plus that way you have a rinse tank available.

For eats, be sure to go to Blue Cactus.  For lunch, try the Lost Penguin.