Sant'Angelo is a superb little walking only town on the island of Ischia, in Italy. One small caveat to the walking only part is that you might see little vehicles taking supplies and / or luggage around occasionally but that's about it. Otherwise it's just the nice quiet sound of folks walking around and relaxing!
My group of four took a day trip from where we were staying in Forio to Sant'Angelo. We took a crowded public bus on the way there, which worked fine, and then opted for a taxi on the way back.
This quaint little town is easily walkable, even in the hot and humid of summer time. There are great ways to cool down if it is hot. One way is via a local place serving delicious gelato. Another way is to rent a beach chair and take a splash. If you're adventurous, or perhaps foolish, like us then you can, at your own risk, hike out to the Torre di Sant' Angelo and carefully get in and out of the water to cool down. Please watch out for waves and slippery rocks if you try this (again at your own risk of course).
Bar Ridente is a good spot for lunch. They offer gelato as well, just don't make the mistake that we did and try to sit at a table if you're only getting gelato.
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