Hjelmkollen [Helmet Head] fort was built as part of the border defences associated with the main fort in Halden, originally when there were no bridges over the border and fjord. It was also used briefly in the run-up to independence and during the last world war, again because of its strategic location overlooking the narrowest point of the Iddefjord. Recently, the local historical society has cleared the area of the fortifications and buildings a little, and there are fantastic panoramic views from the top.
The cache is only about 250 meters by GPSer from the "Helmet Nose" cache GCQ69A, and one can look down on it from the fort, but there is a lot of vertical distance between the two, and no direct connecting path.
The only hard part is to find the start of the best path. We recommend you park at the old toll station on the right side as you enter Norway over the old bridge. At the far end there is an old cart track leading behind the toll station. The start of the best path is hidden on the left, in the trees where the track takes a right turn. There is a concrete drain sticking out of the ground at this point. The start of a path is hidden in the trees. Follow this path upwards, turn right at the house and sign marked "Blåsopp" and go straight on to the top. It takes about 15 minutes on foot from the old toll station. To find the cache, enter the bowl at the end of the trench that comes nearest the new bridge.
Please take a picnic, or rest a while and watch the busy ants below in cars and boats. Nearby, on a separate small top, there is also a geodetic control point, a calibrated marking for mapmakers, etc. There are also several ruins, trenches and old gun emplacements.