Hi again,
will be in both of the above ports in September. Is it necessary to take an organized tour, or can you get around on your own?
Thanks in advance
Donna

St Peter Port is small, the whole island of Guernsey is small, a tour is not necessary for navigation purposes but might interesting for sightseeing.

Thanks Odin, any other ideas or comments?

Well you don't want to spend any more time in Holyhead than you absolutely have to. It depends on how long you have ashore whether you can get away and do your own thing or whether it would be better to take a tour.

Are you sailing the boat yourself if so skip Hollyhead and moor in the Conway estuary at Conway, far nicer place and much more to see with Caenarvon and Conway castles.

We will be on the Celebrity cruise ship. They do offer a variety of tours to other places as well as the above mentioned ports.
Thanks
Donna

I'm not sure how many of the excusrions listed on their website are offered on your cruise, but i wouls suggest either the Caernarvon castle/Snowdonia trip or the one to Conway.
If you are adventurous then Llechwedd slate mines are worth a visit or the bike ride pub trip sounds fun. Anglesy is very different to mainland North Wales but easy for bike riding. Suoth Stack trip is spectacular but doesn't really give you a taste of Wales.
Bodnant gardens are better in the spring when the rhodoenrons are in flower.
You could get a train to Conway, but I think the tours probably give you more than doing it yourself. Much of the are needs a car (or bus) to get to it.