Rachel,

Typically you'd consider the hiking to be part of you weekly activity when choosing your activity level for determining your daily protein and block requirement.  You'd eat your suggested requirement on a daily basis.  Since your activity is not purely aerobic (the numerous steep ascents contain elements of lower body strength training), you would use at least the "Active" level.  It will be very important to support your hikes with careful timing of snacks and meals on the hike days.  It would be fine to add an extra block on hiking days if needed, to make the timing work out during your activity.  If you find you're lacking energy, even though you're eating you full protein block requirement, you'd increase the monounsaturated fat you add to your meals and snacks. 

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