Travel Agenda: Istanbul Edition; St John Hotel; The Residence in Zanzibar; Cotswold Outdoor; Snow Centre

Today: A trio of new hotels opens: the Istanbul Edition courtesy of Ian Schrager and Marriott ( editionhotels.com); the much-delayed St John Hotel and restaurant in the West End of London ( stjohnhotellondon.com); and The Residence in Zanzibar ( theresidence.com).

This week: Cotswold Outdoor stores are offering free navigation courses with Ordnance Survey, which will teach compass skills and map reading and offer discounts on maps. Running until June, the first course takes place on Tuesday in Carmarthen ( cotswoldoutdoor.com).

In the diary: You need not be a man or travel to St Moritz to have a go at the Cresta Run. The Snow Centre in Hemel Hempstead is offering its own version for Easter, starting next Saturday, 9 April. There are inflatable skeletons for adults and mini-sledges and inflatable rings for children to navigate the 100m run complete with real snow ( thesnowcentre.com).