Royalty free image: Sisters holding hands facing each other

Royalty free image: Friends camping on beach, Cabo Pulmo, California

Royalty free image: Students using computers in lecture

Royalty free image: A lecture

Royalty free image: Eiffel Tower, mid section, Paris, France

Royalty free image: Young woman in cave, Antelope Canyon, Page, Arizona, USA

Royalty free image: Bare burnt trees on snow covered hill in Sawtooth National Forest, Idaho

Royalty free image: Businesspeople in meeting

Royalty free image: Woman taking photograph in cave, Antelope Canyon, Page, Arizona, USA

Royalty free image: Young women sitting in a field taking a photograph

Royalty free image: Women hugging themselves to warm up, Haleakala National Park, Maui, Hawaii

Royalty free image: Young woman sitting in kitchen looking at smartphone

Royalty free image: Woman jogging in city park, Barcelona, Catalonia, Spain

Royalty free image: Motorcyclist road trippers around camp fire, Trona Pinnacles, California, US

Royalty free image: Young female surfer looking over her shoulder from back of recreational vehicle at beach, portrait,

Royalty free image: Young woman wearing boater drinking iced coffee, portrait, Menemsha, Martha's Vineyard, Massachusett

Royalty free image: Couple dancing in snowy landscape, Georgetown, Canada

Royalty free image: Hikers walking in rainforest, Iao Valley, Maui, Hawaii

Royalty free image: Pregnant woman doing balancing and strengthening exercise

Royalty free image: Sunset over skyscrapers, State Tower in background, Bangkok, Thailand

Royalty free image: Young female surfer sitting on surfboard in calm misty sea, portrait, Ventura, California, USA

Royalty free image: Couple kissing in snow, Georgetown, Canada

Royalty free image: Young woman on rural road looking at lighthouse, rear view, Menemsha, Martha's Vineyard, Massachuset

Royalty free image: Girl running in field

Royalty free image: Woman and toddler girl at home

Royalty free image: Woman in hurry, Waimea Canyon, Kauai, Hawaii

Royalty free image: Female tourist in sunglasses and baseball cap on board sailboat, Komodo Island, East Nusa Tenggara,

Royalty free image: Mother carrying up son in forest

Royalty free image: Young woman in felt hat leaning against fence next to horse, Jalama, California, USA

Royalty free image: Bride in wedding dress on beach at sunset, Scarborough Bluffs, Toronto, Canada

Royalty free image: Young woman slicing potatoes at kitchen counter, close up of hands

Royalty free image: Sisters throwing leaves in air in forest

Royalty free image: Woman relaxing by old tree trunk, Kailua Beach, Oahu, Hawaii

Royalty free image: Hiker on Kuilau Ridge Trail, Kauai, Hawaii

Royalty free image: Great hammerhead shark, Alice Town, Bimini, Bahamas

Royalty free image: Super pod of common dolphins off Baja California

Royalty free image: Young woman sitting in field of wildflowers looking up, Jalama, California, USA

Royalty free image: Cenote cave diving, Tulum, Quintana Roo, Mexico

Royalty free image: Baby boy playing with pumpkin seeds in colander

Royalty free image: Cars on road, Haleakala, Maui, Hawaii

Royalty free image: Happy couple under covers in bed

Royalty free image: Teenage female football player on field

Royalty free image: Motorcyclist enjoying stunts, Trona Pinnacles, California, US

Royalty free image: Young couple kissing by recreational vehicle at beach, Jalama, California, USA

Royalty free image: Rock climbing in El Chalt

Royalty free image: Man on van road trip loading surfboard, Ventura, California, US

Royalty free image: Hikers on hiking trail, Haleakala National Park, Maui, Hawaii

Royalty free image: Couple balancing on fallen tree trunk in forest, Tobermory, Canada