Yes there are, quite a few body boarders out while we were ther.

The toilets in the Victorian Slipway are open to the public.

I am sure if there is anywhere local if you do a Google search that might tell you where there is one. Sorry I can't be more helpful.

Yes

You can if you want to be swimming when the tide comes in ....

Yes but you must take all rubbish with you and ensure no hot ashes are left etc. I would also remove any food scraps too if you can. Many people build their own small fires on the beach, as the further towards Aberdovey you go the more dry wood you will find. We have been doing it for over 30 years with no issues. Enjoy

April to October only either side of the main prom. There are signs on the railings .

Spoilt for choice, loads of places you can just turn up at in and around Tywyn

One part of the beach isn't too keen on dogs (by the ramp) but if you go left or right, we usually let our beagle run loose :)

Not in front of the main prom but I think it's ok either side Towards Aberdovey is a fantastic walk loads of space for your dog to run and safe to have a swim.