Well, it looks like a time portal. Macaulay Point Park was formerly a part of the coastal defences, along with Fort Rodd Hill. This spooky looking tunnel is the entrance leading up the the highest gun emplacement. These defences were originally built to defend Victoria and Esquimalt, "...in 1878, when a crisis in the Balkans made war appear imminent." You can read more about these defenses on the Canadian Forces Base Esquimalt Naval & Military Museum website and there's lots of other interesting information there as well. For example, British Columbia had its own two submarine fleet in 1914, purchased secretly from their maker in Seattle. Tomorrow we'll take a look at the view from the other end of the tunnel.