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Our national park system invites visitors to choose their own adventures in the most beautiful spots in the U£®S.Here's our selection for the most exciting and unusual national park activities.

Rock­Climbing: Yosemite National Park

Yosemite National Park is a climber's paradise.Since 1969, the Yosemite Mountaineering School and Guide Service has been training newbies and accompanying seasoned climbers on trips in the park's many climbing areas.

Snorkeling: Virgin Islands National Park

You'll want flippers, a mask and snorkel to explore the best trail in St.John because it's actually underwater.The snorkeling trail at Trunk Bay is a 225­yard swim lined with signs describing the fish, coral and plants that live in the warm turquoise waters.

Orienteering: Prince William Forest Park

Set off on a modern­day treasure hunt at Prince William Forest Park.Leave the GPS system at home for an orienteering adventure using just a map and compass to follow clues around one of the park's 30 courses.You can choose to set your own pace, whether it's a slowpoke family stroll while the kids master the compass or a competitive jaunt to race to the final clue.

Hiking: Great Smoky Mountains National Park

Hikers can set off on a great adventure on foot any time of year in the Great Smoky Mountains National Park.With more than 800 miles of trails, there are plenty of options including scenic strolls through fields of wildflowers and strenuous climbs to the top of the park's glorious waterfalls.

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1£®Which park may a diver favor?

A£®Yosemite National Park.

B£®Virgin Islands National Park.

C£®Prince William Forest Park.

D£®Great Smoky Mountains National Park.

½âÎö£ºÑ¡B¡¡ ϸ½ÚÀí½âÌâ¡£¸ù¾ÝSnorkeling: Virgin Islands National Park²¿·ÖµÄµÚÒ»¾äÖеēit's actually underwater”¿ÉÖª£¬Ê¥Ô¼º²µÄ×î¼Ñ²½µÀʵ¼ÊÉÏÊÇÔÚˮϣ¬ËùÒÔDZˮԱ¿ÉÄÜϲ»¶Õâ¸ö¹«Ô°¡£¹ÊÑ¡B¡£

2£®What is a necessity for an orienteering adventure in Prince William Forest Park?

A£®GPS system.¡¡¡¡¡¡¡¡¡¡¡¡¡¡             B£®Treasure.

C£®Compass.                              D£®Pacer.

½âÎö£ºÑ¡C¡¡Ï¸½ÚÀí½âÌâ¡£¸ù¾ÝOrienteering: Prince William Forest Park²¿·ÖµÄµÚ¶þ¾äÖеēusing just a map and compass”¿ÉÖª£¬µØͼºÍÖ¸ÄÏÕëÊDZØÐèµÄ£¬¹ÊÑ¡C¡£

3£®What can visitors do if they go to Great Smoky Mountains National Park?

A£®Enjoy beautiful scenery.

B£®See underwater creatures.

C£®Play hunt game.

D£®Receive climbing training.

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