£13 Round trip or £10 for seniors boats leave every 20 mins from about 10am you can stay all day if you want right up to last boat back at about 4.30

I am not sure , if your son were able to access the boat without the wheelchair then yes as there plenty of space ion deck for his wheelchair if not I didn’t see any kind of ramps . They may well have had them on the boat but as they were not required they were not on view . Sorry I cannot be more helpful

Children of all ages had to be an adult and as far as I could see all adults even some as young as 80 were able to go on the boats.

Yes. Island Cruise facilities onboard. A toilet and a licensed bar.

Hi. Trips everyday, weather permitting. Sorry it took so long to respond, I only just saw this q.

Which is better depends on who’s going I would say. The island cruise is a bigger boat with toilet facilities, drinks etc and a gentler experience. The seal safari is in a zodiac type inflatable which is faster and I imagine a bumpier ride. You can book when you arrive so it might be an idea to pop to the harbour before booking, you’ll see the boats come and go, so it will give you a better idea which is suitable for you.

Hi - yes, when we went to Caldey the boat had a couple of dogs on board. I am not sure if they are charged though! Hope that helps.