It's quite a nice walk up here about 3km round trip from the switch back. (before it gets really really steep) You can start lower if you want a bit more of a leg stretch.
So this walk is to the top of the peninsula behind Sokehs rock. When you finish the steep climb you will see a few buildings. If you turn right and continue up the path you will get to the top of the mountain where the radio towers are.
To see the Japanese Guns, when you get to the buildings go straight or slightly to the left. There are two guns, just be careful walking around them as the ground can be muddy and there are a few holes. Also be careful looking into any of the dug out caverns in the walls because there are a few bats around too.
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