This is exactly what occurred with Havasupai reservations in AZ. A pretty tough lottery system that sells out for year in under an hour, first day. We were supposed to be there tomorrow for our 3 night/4 day trip. They have been running a two week out - letting you know your reservation is cancelled and is automatically rescheduled for 2021 season. We had option for exact dates or entry 1 day earlier (22nd 2021 vs 23rd 2020). All money had been paid out and da Tribe does not refund your money for any reason - even acts of God, as it may be. So a bad news, good news situation of not having to go through lottery next year and lots of time to re-plan.
Obtained Yosemite back country permits entry 4th of July for several nights. Had been trying the walk-in lottery system, every day since Havasupai cancellation several weeks ago. Something is not right with this system though, several times received all choices not available for your party size email, only to see available spaces on same date within 1/2 hour of receiving notice (and most recent system update - they time stamp them). Can't really call anyone, they are not geared for Q&A and email response is non-existent to not helpful.
Which leads me to Whitney, apologise if fully covered on this forum, will look as well. But how or what is walk-up system for overnight/Whitney at this time. Have viewed recreation.gov site several times, with clearly no availability. This would be just down the road post Yosemite relative to us driving from Bay Area to get here. Did solo summit 2017 and would like to make the trek again with family - or as much as they are willing to do.
