The most visited national park in the USA, Great Smoky Mountains National Park encompasses some 800 square miles of protected forest along the border of North Carolina and Tennessee. At the heart of it all is Gatlinburg, an ideal base from which to explore the park's hundreds of hiking trails, go river rafting, fishing, horse riding or wildlife watching, or embark on numerous other outdoor adventures. After climbing mountains, take a lift 342 feet to the top of the Gatlinburg Space Needle for stunning views of the Smokies and the surrounding area. Children will love the amusement centre next to the Needle, which is full of entertaining rides and games. For more family fun visit the captivating creatures of Ripley's Aquarium. Touch a Ray Ban and ogle a lagoon full of sharks. Dolly Parton fans won't want to miss Dollywood, located in nearby Pigeon Forge. This large amusement park features rides and attractions inspired by the popular country singer's love of music, the Smoky Mountains and good old-fashioned southern hospitality.

Strongly influenced by the tribal culture of the Guanches (the original inhabitants), Tenerife was conquered by the Spanish 500 years ago. It's home to Mount Teide, Spain's tallest peak, and to the popular beach resort of Los Gigantes. Today visitors flock to Loro Park to see tropical birds, to Tenerife Zoo Monkey Park and to Parque Nacional Las Canadas del Teide's volcanic rock formations. Explore by car or with a "bono bus" ticket, which offers reductions on regular prices.

The sun-drenched Canary Islands lie close to North Africa and have an exotic flavour of their own. Hundreds of volcanoes, rolling sand dunes, rich forests and rugged cliffs dapple these seven Atlantic gems. Catch a ferry to Lanzarote. Ride a camel through volcanic Timanfaya National Park. Take on Tenerife, home of Mount Teide, Spain's tallest peak. Romp Grand Canary's beaches or hike La Gomera's Garajonay National Park. More adventures await on tiny El Hierro, verdant La Palma and peaceful Fuerteventura.

If your kids are sick of the same old beach holiday you take every year, consider taking them to Lanzarote. There are great beaches, to be sure, but this UNESCO World Biosphere reserve has unique attractions and activities. We're talking camel rides on volcanoes (at Timanfaya National Park), or eating at a restaurant in a volcanic cave (at Jameos del Agua). Even the most jaded teens will be impressed.

The Algarve's sunny shores offer perfect escapes for all types, from those seeking the hot nightlife of flashy, energetic Lagos to those desiring secluded stays in rambling Sagres. Portugal's most southerly region offers historical attractions in former Moorish capital Silves and fascinating Tavira, great golf, fabulous beaches from Praia da Luz to Armacao de Pera, thermal springs at Caldas de Monchique, and miles of limestone caves and grottoes, cliffs and bays along its rugged coastline.

The Costa del Sol juxtaposes gorgeous Mediterranean old towns and inland national parks with developed beach resorts. Famed for being the birthplace of Picasso, Malaga serves as a gateway to family-favourite stops such as Benidorm and Fuengirola.

Ibiza: Old Spanish for "party 'til you drop." Perhaps not literally, but this is definitely one of Europe's favourite nightlife playgrounds. Ibiza boasts more than 100 miles of coastline with some 50 beaches, plus plenty of restaurants, bars, and water sports—and clubs, of course. Fit in a little culture and visit Ibiza's UNESCO-designated old town.