Holderness Offshore

Site overview: This is an inshore and offshore site because it crosses the 12 nm territorial seas limit. It is a big site measuring 1,176 km2. In the site is the Inner Silver Pit glacial tunnel valley feature. This is home to lots of sea creatures. You can spot the occasional basking shark here and seabirds come here to feed. The site is also a spawning and nursery ground for a number of fish species.
At risk:  ! This site is at risk, it currently is not designated as a Marine Protected Area - but should be. Decision makers in England will determine in 2017 if this site should be protected, make sure your voice is heard. Take action to ensure this site becomes a properly protected area.

Designation Status
Last Updated
6 June 2017
MPA Type
Marine Conservation Zone
MPA Purpose
to protect nationally important marine wildlife, habitats, geology and geomorphology


53° 49' 8" North,
0° 26' 27" East

Surface Area

1,176.12 km2
(454.10 mi.2 )


178.74 km
(111.06 mi.)

Iconic features protected by this site