With a tidal stream of 4 knots, would you set off on port or starboard tack from the Needles to Cherbourg? Credit: Graham Snook/Yachting Monthly

There is a strong tidal stream. Would you set off on a port or starboard tack? James Stevens answers your questions of seamanship

Martin's Haven in Pembrokeshire

Dag Pike is rewarded with a quiet spot to anchor at Martin's Haven after navigating the tidal races along the Welsh coast

Fiercest tide races

Breaking waves and lurking rocks have earned some British tidal races a fearsome reputation. Dag Pike explains how to navigate them