Absolute favourite - they take extra care keeping the GF pizzas free from contamination. Also have dedicated fryers for their amazing calamari. Make sure you mention you're a coeliac and they'll really look after you.
Fantastic food and a great view, but your options are limited. GF pizza is available, the are several GF starters, and a reasonable selection of mains. I was the only Celiac in a large party and they found lovely options to accommodate me.