I didn't know that. We have three off the coast of the Isle of Wight.
Steve.
Maybe you're talking about other forts, there are a lot of Napoleonic era forts in the Solent area, but I always thought there were 4?
Spitbank, St Helens, Horse Sand, No Mans Land - I think maybe they're all private/hotels now? Very cool to visit Spitbank back in the day when it was 'open'
Cheddar is nice, winter is perfect, less coaches/tourist groups. Get up high if you can, the view from above is the one. The caves, not so interesting to me, Wookey Hole is better maybe?
Glastonbury isn't so bad, a lot nicer than some of the boghole Somerset towns like Frome imo. The Abbey and the Tor are absolutely worth the effort. There's a couple of old country craft type museum/visitor centre things around town too that are pretty OK. You don't have to buy crystals or hashish to enjoy a pleasant afternoon down there. Short drive to commanding views across beautiful Sedgemoor and the Mendips too. Gorgeous part of the world Avalon imo and I've never found my mother earth crystal or morris danced or whatever. - Sedgmoor draped in morning mist with the Tor poking above is a special sight imo with the fine aroma of pig manure on the air that means you just need to be there.
Enjoy your Cheddar trip.