21 Apr 2025
BEWARE. This is a SCAM. We booked via Viator and 1) they never showed; 2) when they finally called after multiples calls (I think they'd just gotten word that we were seeking a refund from Viator), they pretended like we were the ones who were at fault and missed our guide; 3) they tried to upsell us to buy later tickets. You can ONLY buy tickets through the National Park Service.