Navigational warning 137/23 — NAVAREA I

Status: In force · Source: UKHO Admiralty Notices to Mariners

NORTH SEA, NORWEGIAN SECTOR. Gullfaks Oil Field. Chart GB 1427 (INT 1401). Seismic survey in progress by R/V Ramform Vanguard towing 17 x 4200 metre long cables, with ends marked by V- AIS and yellow buoys, within area bounded by 61-18.2N 001-48.2E, 61-18.1N 002-46.8E, 60-57.8N 002-42.6E and 60-57.8N 001-52.2E. Wide berth of 2 miles ahead and abeam and 4 miles astern requested. M/V Thor Freyja and M/V Sanco Sea in attendance.

Reference information — always verify against official Notices to Mariners before navigation.