Island Markets are located in Derwent Park and although there are plenty of junk stalls to try and avoid, there's also a great fish market in the complex. I've set myself a challenge, where everytime I go there I buy some sort of seafood that I haven't cooked with before, and experiment with it.
this recipe (halved). Preparing the crab was much easier than I expected - everything comes apart pretty cleanly, and the recipe was quite easy. I omitted the sherry, as I didn't have any.