Originally Posted by
SanDiego1K
... Are there any restrictions on the hike from Glacier Point to the falls?
Um. Which falls? Illilouette? Or are you thinking of making the long loop around to Vernal and Nevada Falls on the often skipped part of the John Muir Trail and out via Happy Isles? That one can be a bit tough due to the altitude loss. Tough on knees and feet.
Either way, there are no restrictions or permits for most day hike trails in the Park. Overnight backpacks are a different story but day hiking, other than Half Dome, should be fine.