Looking for a shorter hike that still packs a workout punch? Head to the north shore of Oahu and spend the morning (or afternoon) on Keālia Trail. This switchback-heavy trail will get you both sweating and in awe of the beautiful ocean views. I’ve hiked this trail a few times over the years and now most recently with my oldest daughter. I told myself that this time, I would hike beyond the picnic table. But, alas, just like every other…