It's summer, here's a nice thing to do: Visit the fish market at Mina Zayed Port
The fish market is due to move near Saddiyat Island at some point (yes, it doesn't make any sense to me either - and yes everything good is moving too far out) so get there while you can. We bought an entire tuna and a ridiculous amount of shrimp for about Dh200. There are men on hand to clean and chop the seafood, and outside you can even have it, or at least some of it, seasoned grilled up for you! Plus, I like how they spell tuna.