The Seychelles' unique marine biodiversity and appealing crystal-clear waters create the perfect conditions for underwater discovery. For snorkelling, head to one of the best sites of the Indian Ocean - Sainte Anne Marine National Park - or take advantage of the once-in-a-lifetime opportunity to swim alongside whale sharks on Mahe. Diving is another way to get close and personal with reef inhabitants (humphead parrotfish, octopus, various types of sharks - including hammerhead, if you're in luck). Seychelles Underwater Centre

Monkey Beach, also known as Teluk Duyung, is popular for its calm water, fine sand, picnic tables, and a troop of half-tame macaques. It is an attractive destination for a 2-3 hour walk through the tropical woodland of Penang National Park, Taman Negara Pulau Pinang. Be sure to check in at the park office before setting off.

Over a century old, the Speicherstadt is the world's largest integrated complex of warehouses. Visitors to Hamburg will discover a picturesque setting of Wilhelmine era Gothic architecture rendered in red brick, featuring unusual gables and towers. Precious commodities are stored at controlled temperatures behind the massive walls: coffee, tea, cocoa, spices, tobacco, and the world's largest collection of Oriental rugs. If you're pressed for time or wish to give your feet a rest after exploring the city, consider taking a one-hour evening boat tour. The Speicherstadt looks particularly enchanting at sunset.

Located around 156 kilometres from Muscat, Wadi Ash Shab is famous for its canyon, crystal-clear turquoise pools, and a hidden waterfall concealed within a cave. It attracts both seasoned hikers and beginners alike. The adventure begins with a short mandatory boat ride across the river, followed by a 45-minute hike leading to the pools and the cave. It’s an ideal spot for swimming, snorkelling and exploring. Make sure you pack hiking shoes and water shoes, as you’ll need both for trekking and wading through the river.