It didn’t rain, so I went out with my camera today. I actually went out exploring twice, so the included photos are actually from two separate visits.
This Second World War bunker formed part of the Arun-Ouse Stop Line, as the area was thought to be one of the major routes towards London. This particular pillbox is anti-infantry, based on the small holes overlooking the bridge. Nothing much bigger than a light machine gun would fit through these, and there are pairs of blocks on the floor for the guns’ supports. I think this is a Type 24 pillbox, more information here at the Pillbox Study Group. Despite my research it was quite difficult to find, but once you know it is fairly easy to get to.
Into the pillbox 
Pillbox entrance 
Gunhole for Light Machine Gun 
Bases for machine gun legs 
Bases for machine gun legs 
Entrance from inside, showing part of the Y-shaped inner blast wall to the right 
Remote Flashgun 
Exterior of pillbox, remote flash positioned inside 
View of entrance from inside, with corner of Y-shaped blast wall to the left 
Taken with external flashgun positioned to left 
Taken with external flashgun positioned to left 
Taken with external flashgun positioned to left 
Interior 
Interior 
View of the exterior 
Vodka bottle from a previous visitor 
Vodka bottle from a previous visitor, HDR processed 
Rear of pillbox 
Rear of pillbox, HDR processed