For a brush with spectacular nature and wildlife within a half hour drive from the Namibian capital, Daan Viljoen Game Reserve is hard to beat. Its vast expanses are inhabited by native animals such as zebra and antelope, along with a couple hundred indigenous bird species. The park is an excellent getaway for picnics and hiking.

Just an hour's boat trip away from Cartagena lie the magnificent Rosario Islands, which belong to Colombia's only underwater natural park (Rosario and San Bernardo Corals National Natural Park). Abundant marine wildlife (including over 50 species of corals) and some of Colombia's best beaches draw in many in search of relaxation and active pursuits such as snorkelling and diving. Isla Grande is best for kayaking through unique mangrove forests and seeing the phosphorescent plankton light up the waters of a brackish lake at night, while Playa Blanca is Cartagena's most spectacular white-sand beach (also reachable by land). It should be said that the company you choose to tour with has the potential to make or break the experience. Low cost tours can mean multiple intermediate stops en route to your destination, as well as unpleasant surprises such as no transfer back to your hotel. Try and choose a trusted company with consistently good reviews, or opt for a private tour. Mind that seas may be rough at certain times of the year, particularly in December and January, when tours on smaller boats may even become dangerous.

While there are many guided tours on the Fort Lauderdale Intracoastal Waterways, the Jungle Queen Cruises are probably the most famous ones. Old-fashioned sternwheeler ships travel the rivers and offer tours between 90 minutes and three hours. Not only gorgeous views but also dinners and shows on the riverboats will make this cruise a memorable experience.