A bi-weekly round-up of new hotels and hideaways, treks and tours.

Peru-based Aqua Expeditions launches the MV Aria this month, a 150-foot boat that will sail up the northern Amazon to view remote locations and rare wildlife like the native pink dolphins. It has four more cabins than the Aqua, their first boat, and sleeps 32 passengers.

The New Delhi region got a new contemporary luxury hotel when The Oberoi, Gurgaon opened on Tuesday, 30 minutes from the city and close to the airport.

Lake's my lake hotel and spa opens 15 April on Austria's southern Alps. Set on the banks of the blue Lake Wörthersee, it has wood-and-glass sundecks over the water and a private beach club.

Also on 15 April, Hotel du Cap-Eden-Roc in Cap d'Antibes reopens after a four-year restoration, a month before the Cannes Film Festival.

Just in time to raise a glass to the royal couple, the small Perrier-Jouët Lounge opens at Duke's London in Mayfair on 18 April, serving all of the House's labels and five Champagne cocktails.

Great Freedom Adventures announces their summer line-up of bike tours through New York and New England. The Hudson Valley tour includes the stone-fenced fields of Columbia and Dutchess counties, and a river cruise and dinner at the Culinary Institute of America.

Opening 20 April, the W St Petersburg is the first for the chain in Eastern Europe. The hotel is located in a prime city location, near the Hermitage Museum and Winter Palace.

The Venetian Painters and the Venice of Canaletto tours from Orient-Express fly out of London in April and October for trips that include exploring the paintings and master works at the Doge's Palace and the Villa Pisani. The journey back to London is on the classic Venice Simplon-Orient-Express train.