If you just need to get a few feet up the beach, don't drag the boat up, pick it up and set it down on the beach. This is what I do whenever I just need to get the bows (or sterns) on the beach enough to keep the boat from blowing away. I do this all the time when I'm alone on my H17, I come in from sailing, and I need to leave the boat to go get my cat wheels. I just need the boat up enough so it doesn't blow away.
Stand between the hulls facing forward, right in front of the front crossbar, one hand on the dolphin striker post, one hand on the X-bar, lift up walk a few steps forward, then set the boat down. Way easier on the hulls than dragging.

If you're on a rocky beach, putting down some padding is probably a good idea.

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