Yosemite is quite simply one of the finest hiking and climbing parks in the world. Trails are numerous and breathtaking, and the climbing is unparraleled.

Yosemite Hikes:

Half Dome - 17 miles round trip, 4,800 feet gain
Nevada Falls - 7 miles round trip, 2,000 feet gain
Bridalveil Falls - 0.5 miles round trip
Lower Yosemite Falls - 1.0 miles round trip, wheelchair
Cook's Meadow - 1.0 mile round trip, wheelchair
Mirror Lake/Meadow - 2 miles round trip, wheelchair
Valley Floor Loops - 13 miles round trip
Four Mile Trail - 9.6 miles round trip, 3200 feet gain
Panorama Trail - 8.5 miles round trip 3200 feet
Grizzly Giant Sequoia - 1.6 miles round trip, 400 feet

Camping/hiking equipment checklist:

sturdy and lightweight tent
comfortable backpack or daypack
enough water for your hike or a quality water purifier/filter
raingear
a sleeping bag rated properly for the time of the year
comfortable, already broken in hiking boots to avoid blisters
matches or lighter
hat and gloves in crisp conditions
quality winbreaker and liner
proper amount of food (high odor items are probably not a good choice)
sunblock
a hat
sunglasses
camera
bear spray
cooking utensils
knife
scrub pad
20 feet of light rope
insect repellent
sleeping bag
cooking stove