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Assuming you are avoiding Philly because of the specific holiday...
If you're adventurous and have landscape gear, you could spend a day, perhaps two, hiking through the Jersey Pine Barrens. Plenty of wildlife, foliage and nature. It's probably to late, but you can rent very comfy cabins down there for about 55-75 a nig, right off 206.
You could spend a day in.Lancaster County. Very idyllic, back country roads, Amish abound.
If you're in the area at dinner time (dusk or so...), there is a restaurant along the Delaware on the Jersey side and great views across the river into South Philly. If you can get up high enough, perhaps shots of downtown.
A night could be spent in Wildwood shooting all the neon colored rides and shops.
These are just off the top of my head.