I don't know. I've only been there one time in the summer. I live in South Carolina. You could probably Google and find out.

All stairs. Didn't see any way for a wheelchair. Be best to call them.

You can buy tickets on site. We did so. Just note, that they have a time schedule, so better to check the times and availability in advance, so you don't loose precious time around waterfalls waiting.

Tickets are not available on line. We went there on Monday （ A week before Labor Day ) afternoon around 4 pm in person, there are plenty of tickets available.

No, they don't provide sandals. We did make a stop at a small souvenir shop where sandals could be purchased. However, I highly recommend water shoes that are much safer when climbing so many (wet) steps.

Depends on the weather conditions and climate, but the most probably yes. This year they open for boat rides because of the ice only at first weekend in May. However, Cave of the Winds is supposed to be open whole year round, so you can actually go. But you need to take in consideration that you can get wet and the weather can be colder.

Yes. You’re going to get wet anyway, so the rain doesn’t force them to close.

Do Cave of the Winds last because you can get pretty wet. With the Maid of the Mist you do not get nearly as wet.

No when you put on your sandles,you get on the elevator down to the gourge and you get your Pancho and proceed into the falls.