Have you tried asking an accessible travel local agency? I know Mirijam of Disabled Accessible Travel, they are local and very good. They should have day trips too, and all that’s needed to get you there and back and have a great day out. I don’t know about prices, but that you can ask and if it’s above your budget, of course you can refuse. But if you buy directly from her, it will be cheaper than through Viator or other platforms, normally.
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