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A nice short hike that will get the blood pumping.
Lawrence Mountain doesn't offer the best views but the Passing Gas trail is full of twists and turns and drops it sure will make it a very fun hike.
Afterwards you'll come to the top of Red Rock and enjoy a great view of Plum Island to Cape Ann.
Be aware that there is no sidewalk as you walk along MA-133.
There is plenty of room in the breakdown lane, but proceed with caution.