How long should we schedule if we want to drive around the park and maybe get out to take photos or hike for an hour?
To help set expectations, Forest Park, is mainly literally a forest with a large number of hiking trails in it. The longest trail, the Wildwood trail is 30 miles long in one direction, so you could spend days covering all of the trails. In my opinion, if I only had one day and 3 hours to hike the trails, I would try to park near the Portland Audubon Society at the Macleay Park parking area and hike the Wildwood trail from there to Hoyt Arboretum and back. Along the way you would enjoy the spectacular views at Pittock Mansion. On a clear day, from Pittock Mansion you can see downtown Portland and 4 8000ft and higher mountains (they are really volcano)
To be comfortable and not rushed, I would give myself 2 1/2-3 hrs. Assuming the weather is nice, you will want to stop and take some photos along your hike.
I would allow 3 hours total.
You could give yourself anywhere from 1-3 hours, depending on your own timing to enjoy the sites, the walks and hikes, not to mention the weather, of course. This isn't a great rainy day excursion (for most), but with the right gear, you can laugh in the face of rain and enjoy the park more to yourselves than if it were a bright sunshining day. Hope this helps!
I would say, if you really want to hike a ways, you should give yourselves 31/2-4 hours, you might just want to just sit and listen to the birds for a little while too!
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