My in-laws came from Germany to visit in September and we went to Howe Caverns. Some of the turns weren't marked very well, and you could almost miss it because of the quarrying operation you pass along the way.
We caught the tour starting about 10 minutes after we parked. The trip down in the elevator was uneventful. During the tour, we were really close to other groups a couple of times, so you felt crowded or rushed, other times we were alone. A lot of the formations are very nice and photo worthy, but if you really look closely you can tell that a some of the walls have been redone after construction of the trail.
At the turn-around point, while you're sitting on this skiff deep underground, they turn the lights off. If you've never seen absolute black - and I do mean absolute - this might freak you out a little. Towards the end of the return trip, make sure you give your group some distance - spread out. There's one section that definitely isn't for large people and you can only go single file, with people crammed in ahead and behind. It's well done, but if you're claustrophobic, go in the front or end of your group.
If you've been to a lot of caves, you'll probably be disappointed by the size and depth. If you haven't seen many, then it's worth a visit.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.
January 29, 2013
Thank you for taking the time to write a Trip Advisor for your recent visit to Howe Caverns! We appreciate the opportunity to host you and your family while they were visiting. Again, thank you for sending your feedback to Howe Caverns; we hope to see you another time!
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Howe Caverns, Inc.
This response is the subjective opinion of the management representative and not of TripAdvisor LLC.