I know you've signed up for the half-day trip, but try to make sure you're back here by two.

Your half-day trip gives you an inside look at the.

There is also a half-day trip for $75, not including lunch.

Trips run from $20 to $25 a person for half-day trips.

A half-day trip for one with all gear is $150.

Prices range from $22 and up for half-day trips.

Guided half-day trips are $55 a person; full days $75.

Guided half-day trips are $45 a person; full days $65.

He charges $18 a person for a half-day trip.

Pick a different part of the wall, closer in, that you can do as a half-day trip.