https://www.theoutbound.com/yosemite/backpacking/backpack-to-cecile-lake
I believe I took a different route to Cecile, but can’t rightly recall. it’s possible to drop down from Cecile to Minaret Lake if you’re comfortable with a little bit of steep. this would be my route today: up to Iceberg: easy peasy. Then up to Cecile and down to Minaret, then up to the tiny lake above Cecile. Easy mileage, but the route to Cecile is class 3 for a brief period of time.
The most popular routes out of Red’s Meadows lead to 1,000 island lake, with a variety of lake loops around. Popular for a reason: the landscape through this area is spectacular. but 1000 island is also windy, buggy and exposed to weather. I much prefer Davis Lake, just a few miles further on from your starting point and much less visited. given the altitude, you may end up resenting me for that last sentence! there’s a bit of climb involved, but not at all bad!
I did find the following after a few minutes google search:
https://followtiffsjourney.com/backpacking-thousand-island-lake/
plenty of other options through here! I think heading south out of Reds Meadows isn’t optimal for a several day trip. Climbing back up north and west on any number of trails is rewarding. again, this is a popular area, so be advised.
The above link mentions Minaret Lake. there are on trail routes there, and even better imo, there’s a great day hike(s) out of that up well onto the granite peaks above that are non-technical. And indeed there’s a small lake above Minaret as I recall, that’s a good water source, a tiny bit off trail so rarely visited, and that is on the shoulder of towering peaks.
If the road in to Red’s Meadows is closed to busses, it’s closed to all vehicles, I believe. But you need to enter that area on a bus anyway. It is possible to hike out on the road and get transportation at Mammoth ski resort.