In the 90's we would take clients into the "keyhole", Waimanu Valley (Big Island). Neat place, highest waterfalls on the Big Island. Real tight going in, definitely not a spot to pass another helicopter. Absolutely NO put down spot.
Sigh, Sigh; We got older, wiser, and FAA discovered the Big Island. Now tours fly over top! My last time in was a risk-reward decision with only three pilots onboard.