The Oslo Pass, that provides access to 33 museums as well as free travel on public transport, also offers a free lunch cruise on board a traditional wooden sailing ship.
That new guidance includes the introduction of onboard stability computers, new free-fall lifeboats and the establishment of appropriate minimum levels for staffing qualified mariners on board each passenger ship.
As part of its FunHub service, guests can connect for free online to see daily events across the ship, check out dinner menus and review their folios on their TV or laptops or via tablets and smartphones via a free downloadable app.