Guns ocean and thorns The Sagamore Hill Historic Site is the remains of an old battery of two 155 mm artillery pieces that were placed here in WW2 to protect the Cape Cod Canal and surrounding area against German subs. Like most coastal defense forts, the guns were never fired in anger and were removed after the war. The fort was decommissioned and turned into a park. The site has wide and open trails in the beginning and getting to the site where the old guns were is pretty easy. You can see a few remains of the artillery battery but the main attraction is the great views of the ocean and hills around Sagamore. The site is a nice place for some hiking, easy off road bike riding or snow shoeing and cross country skiing in the winter. However if you try and complete the whole loop be advised that the trail narrows considerably after you reach the artillery site and in the summer gets over grown with impressive thorns, very healthy poison ivy and hordes of ticks. A pleasant and seldom used place that offers a bit of history, great views of the ocean or some exercise. But like many trails in this area it’s probably best left till the cold weather.