Some of my favorite Day Hikes from TM:
Gaylor Lakes
Cathedral Lakes
Glen Aulin
Budd Lake--possibly connection over to Cathedral lakes for a loop.
Lembert Dome/Dog Lake
Mt Dana
For more adventure/longer hikes:
Young Lakes rt (14 miles)
Up Lyell, over to Vogelsang, and down Rafferty (16 miles?)
You cannot go wrong hiking around up there.
Check our our website: http://www.backpackthesierra.com/
Or just read a good mystery novel set in the Sierra; https://www.amazon.com/Danger-Falling-Rocks-Paul-Wagner/dp/0984884963