Weather forecast looks good tomorrow, if a little breezy.
Get breakfast in St Peter Port, i wouldn't bother on the boat.
Christies do a nice breakfast if you want up market, or the White Rock Cafe (the first cafe you'll see when you get off the boat) do a good fry up, the dockers eat there!
Catle Cornet would be a good way of spending the morning and getting a feel for the history of the island, there's also a Military musem at La Vallette which has a lot of occupation history. Stay in town for lunch, there's a lot og good restaurants but if you want somethng light with a good view, you can't beat the Terrace Cafe, overlooks the harbour and town church, serves light English lunches and very good Thai food.
In the afternoon, hop on the 7a bus, this will take you all around the island for a quid, but you'll have to pay a pound each time you get back on. You'll get a good view all around the coast.
Occupation museum is worth a look. Fort Grey (the cup & saucer) shipwreck musuem is also interesting. Both of these are on the 7a route.
West Coast beaches may be a bit chilly tomorrow with a South westerly wind but you'll be able to find a nice spot.
If you don't fancy eating lunch in town, then the Beach Terrace at Pembroke is a nice spot for lunch, and Pembroke beach will be sheltered from the wind
Back to St Peter Port for beers and dinner at the Boathouse, good seafood there or if you fancy a good steak then try Red although its a bit pricey.
There are some great pubs all around the island, cracking afternoon views at The Rockmount at Cobo.
Most of the German Bunkers are sealed off now so you can't get inside.
The German Underground hospital is also good for a visit, spooky and the brothers that run it are interestng characters.
If your're planning on sticking around St Peter Port visit the Tourist office and check for guided walks , they are good and the guides very knowledgable.
If you need directions to any of the above then just ask anybody, we're a friendly bunch.