Pattienc-Love hearing about your cycling adventure! I would be especially interested in hearing more about India. Me and my fiance are thinking of doing our honeymoon there.
Nonameslob-You'll have a blast on your trip
I wouldn't worry about altitude too much. If you do start to experience serious signs of altitude sickness(tiredness, apathy, total loss of track of time, feeling drunk, extreme trouble focussing) you have to descend immediately though. I've dealt with people experiencing altitude sickness on my hikes and had to carry a friend down who ended up having a seizure at 10,500. She was very fit too, but tried going way too fast up the mountain. Seems like you have a very fun and well-planned trip so I'm sure you guys will be fine
I have many hiking and backpacking adventures to share
My most recent hike was up Mt. San Jacinto where I do most of my backpacking training since its at a high elevation. I'm from Palm Springs originally so grew up going up this mountain a lot. There is a tram car that takes you from the base up to 8500ft(2591m) but to do any of the hikes you have to descend 500ft into the valley to get to the trailheads. The summer pass is super cheap too so I go up a few times a week. I went to Wellman's Divide which is an overlook at 9700ft(2956m), its a teeny bit over half way to the peak. I was happy because it was my second time up since getting my pass so I was more acclimatized(takes me about 3x up). I don't start feeling too bad with altitude after that till I hit 10,000ft. And once I hit 11,000 its like a struggle going up every 100ft lol.
The hike was about 7 miles and altogether took me 3 hours, although I did lay out in the sun a bit at the lookout. I felt very good on it and was happy with my time. The last 700ft is the steepest part of the trail and really daunting, but didn't give me too much trouble.
I'm going up again Thursday and haven't decided which trail to do yet. I'm thinking of going to the peak. I'll see how I feel.
I'm including some pics of the Wellman's Divide hike, including a selfie I took at the lookout lol