A recent report from , a UK-based market-research group, revealed the 100 most visited cities in the world last year.听Major Asian hubs听such as Hong Kong, Bangkok, Macau, and Singapore dominated the list, taking seven of the top-ten听spots, while European and Middle Eastern metro areas听followed. Many travelers have used these cities as stopovers en route to听more adventure-filled final destinations, but we鈥檙e here to tell you that you don鈥檛 need to make onward connections to find what you鈥檙e looking for鈥攖hese bustling urban centers have plenty of action-packed detours within an hour or two of downtown. Here鈥檚 a guide to extending that layover, packing in some time outdoors between major cultural sites, or simply making the most of these dynamic places.听
Hong Kong

Visitor count: 26.7 million听
Hong Kong has been the most visited city in the world since 2010. The ongoing anti-government protests听resulted in听2.5 million fewer visitors compared to 2018, but they haven鈥檛听stopped most people听from going. U.S.听听have recommended extra caution but haven鈥檛 discouraged taking trips there, and reports on the ground point to . However,听to听minimize听risk,听keep an eye on local听media reports to gauge which areas are most .
What many visitors don鈥檛 realize is that close to has been designated as parks or protected lands. A fifth of the city is also covered with steep slopes, making for听some of the best granite crags in Asia. Within an hour from the airport, you can go on a moderate canyoneering听day trip along the Ping Nam stream.听Or head 40 minutes south to听hit crags like Lion Rock and Beacon Hill听in Lion Rock Country Park; they听offer a variety of single- and multi-pitch climbs, from 5.6 to 5.13, and there鈥檚 nothing like the payoff鈥攖he skyline views from the top are some of the best in the city. For details on hiking trails in Hong Kong鈥檚 24 national听parks and its听140 miles of cycling tracks, the 听is a good resource.
Bangkok

Visitor count: 25.8 million
This听capital city听has made听the list鈥檚 top five听for several years, securing second place in 2017 and 2018. Most visitors spend a few days in the听center, stopping by its decorated Buddhist temples and bustling street markets, before heading off to Thailand鈥檚 more than 1,000听islands, including听Phuket and Ko听Chang.
But Bangkok is surrounded by river- and lake-based adventures that make adding an extra day or two in the area worth it. Head 50听minutes east to , a wake park where water-skiers and wakeboarders hold onto听handle attached toa rope that鈥檚 pulled along by overhead cables near听the periphery of the lake, or use the park鈥檚听ramps to practice your turnovers and other tricks (from $13).
Macau

Visitor count: 20.6 million
Macau, an听autonomous region on the south coast of China,听is known among globe-trotters as the Las Vegas of Asia,听due its giant casinos (gambling is illegal in Hong Kong and China) and malls along the Cotai Strip. But the former Portuguese colony is more than just roulettes and slot machines.
For extreme urban adventure, team up with guiding company听听to scale 1,100-foot Macau Tower (from $299), where you can walk along the building鈥檚 outer rim for sight lines that reach as far as Hong Kong and the Pearl River Delta in听China on a clear day. Half an hour south of听downtown, or 20 minutes from the airport, is Coloane Island, which has a ten-mile trail system that鈥檚 a go-to spot for local hikers and trail runners. Don鈥檛 miss the 1.3-mile , with views of听the azure South China Sea.
Singapore

Visitor count: 19.8 million
To escape the hustle and bustle of this tiny, dynamic city, go to听, an island just听12 miles from the downtown. It听can be reached in less than an hour via听a free bus from Changi International Airport and then a short ferry ride (from $3).
Hop on tandem kayaks from (from $58) and paddle around the mangrove, with hornbills and herons flying above. On the western edge of the island, Ketam Mountain Bike Park has a world-class ten-mile trail system that听hosts听the city鈥檚 major biking events.
You鈥檙e also likely to bump into wildlife photographers and birders听who come to catch sight of more than 200 species of birds, 700 types of plants, and 40 varieties of reptiles.
London

Visitor count: 19.6 million
Green spaces in London听are a dime a dozen,听but听the adventure offerings indoors and just beyond the city limits and are as innovative as they are varied.
A ten-minute drive from Big Ben is , an ice-climbing gym. The facility听keeps its internal temperature between 10 and 23 degrees year-round to maintain its 26-foot-tall ice wall, which features beginner slabs, dramatic overhangs, and everything in between (from $33).
Or听head an hour north of downtown to Waltham Cross, Hertfordshire, and the听, a rafting and canoeing destination used in the 2012 Olympics. The venue hosts two options for rafting鈥攁 1,000-foot Olympic course with a stunning 19-foot听drop, and a 525-foot loop with a milder five-foot听drop鈥攁nd听offers Class II-IV whitewater听(from $65). New to the sport? You can also take kayaking 听there (from $78).
Paris

Visitor count: 19.1 million
An hour north of听the Eiffel Tower, or 40 minutes from Charles de Gaulle International Airport, is the听. The area has over 870 miles of trails that take hikers through 2,000 years of history.听Ch芒teaus, churches, castles, old towns, and megalithic sites dating back to the Roman era dot routes lined听by chestnut trees.
If you don鈥檛 have time to leave the city, explore its听urban running听and biking opportunities.听Located along the western outskirts Paris,听听(where the French Open is played every May) has two lakes,听nine miles of cycling routes, and countless trails in its 2,100 acres, which is more than twice the size of Central Park. And don鈥檛 forget about , with its听four-mile waterfront walkway from Pont d鈥橝usterlitz to Pont d鈥橧茅na, which passes the Louvre Museum, the Mus茅e d鈥橭rsay, Palais Bourbon, and the Eiffel Tower.
Dubai

Visitor count: 16.3 million
Hotel-bar hopping by luxury limo and extravagant desert safaris may overshadow the city鈥檚 biking and surfing scenes, but there鈥檚 plenty of ways to play outside if you know where to look.听In the cooler months, check out , a 50-mile loop that stretches from the southeast tip of downtown into the desert, where you鈥檒l catch sightings of local wildlife such as oryx and ride alongside training athletes from the United Arab Emirates national team. Rent your ride at 听(from $15) off of the main highway, Sheikh Zayed Road.
If you prefer the water, you鈥檙e听not alone in a city home to . , just east of the iconic Burj Al Arab hotel, is your spot for kitesurfing, wakeboarding, and surfing. It鈥檚 known as the last bastion听for natural waves, as more man-made islands dot the coast and interrupt western swells. Or head to the听 (from $18) in Al Ain, a 90-minute听drive south of Dubai, which creates an 11-foot听wave鈥攖he largest artificial break听in the world鈥攅very 90 seconds.
Delhi

Visitor count: 15.2 million
Due to rapid development of its tourism infrastructure, Delhi witnessed a 20 percent visitor jump from 2018. This increase is only set to grow, as Indira Gandhi International Airport is set to听听by June 2022, enabling听the hub to handle 100 million passengers every year. New direct routes to Delhi include Air India鈥檚 flight from听Toronto听and United Airlines鈥 flight from San Francisco. Its connectivity to locations across northern India, such as Kashmir and the foothills of the Himalayas, has also boosted inbound arrivals.
With wellness tourism on the rise globally, the city听has attracted visitors听who come for its yoga and meditation training institutes.听,听,听and听听are good places to start. If you鈥檙e听a birder, a wildlife photographer, or just looking for some nature, head 18 miles south of the city center to , which听has close to 200 types of birds, more than 80 species of butterflies, and populations of nilgai, the largest Asian antelope that鈥檚 native to the Indian subcontinent. The , near听the entrance, organizes wildlife听 (from $2).
Visa restrictions: For听stays shorter than 60 days, U.S. visitors can apply for an at least four days prior to their arrival in lieu of applying for a tourist visa at an Indian embassy or consulate.
Istanbul

Visitor count: 14.7 million
After political and security issues in 2016 caused a drop in visitors, Istanbul听has rebounded. Its downtown sites are enough to fill a weeklong itinerary (navigating the Grand Bazaar will take at least a day), but it鈥檚 worth doing as the Turks do and taking a day or two to escape the city鈥檚 crowds and congestion.
Head over to Belgrad Forest, just ten听miles north of Istanbul. In an area encompassing more than 13,000 acres of oak, beech, and chestnut trees, runners can choose from plenty of unmarked trails. One of the most popular is a four-mile loop around the southern lake of Neset Suyu. For mountain bikers, there鈥檚 听that spans from the south to the center of the forest.
Visa restrictions:听U.S. citizens who plan to stay听less than 90 days can obtain an .
Kuala Lumpur

Visitor count: 14.1 million
One of 国产吃瓜黑料鈥檚 20 most affordable places to go in 2020, the Malaysian capital is no longer a stopover for visitors on the way听to its surrounding islands.
For serious rock climbers, Batu Caves, a 90-minute听drive north of听the city, has more than 170 routes across eight limestone crags. If you left your gear at home, offers half- and full-day tours with equipment rental (from $51). For hikers,听the 8.7-mile-long, 660-foot-wide , the longest quartz formation in the world, is a challenging trail just 12 miles north of the city. Trek up through muddy jungle terrain from either of the two trailheads, . You鈥檒l need the help of a wire rope to get to the very top, where Kuala Lumpur鈥檚 famous skyline is visible on one side and a reservoir on the other. Looking for something less rigorous? Drive 25 miles south from downtown to for an hourlong hike with scenic jungle views. Go early in the morning or at dusk to catch the sunrise or sunset views over the city.