Sri Lanka's Land and Nature

Sri Lanka is a compact tropical island, only about 65,610 square kilometres, roughly the size of Ireland, yet within that small compass it holds a range of nature out of all proportion to its size. A wide, flat coastal plain of beaches, lagoons and paddy fields rises steadily inland to a rugged knot of central highlands, where tea terraces climb into cloud forest and the island’s highest peaks. What really divides the country, though, is not the mountains but the rain. Two monsoons water opposite sides of the island at opposite times of year, splitting Sri Lanka into a green, humid wet zone in the south-west and a hotter, more open dry zone across the north, east and south-east. From leopards to blue whales, from rainforest to grassy plains, this is one of the richest natural destinations in Asia.

The central highlands and tea country

The heart of the island is its hill country, a tangle of steep ridges and deep valleys rising from the plains to over 2,500 metres. This is the Sri Lanka of a thousand photographs: emerald tea plantations combed across the slopes, waterfalls tumbling through the forest, and cool, misty towns like Nuwara Eliya and Kandy, the old royal capital at the highlands’ northern gateway. The tea was planted by the British from the 1860s, after leaf blight wiped out the earlier coffee estates, and today the terraced serras of Ceylon tea are a defining part of the landscape, best seen from the slow, celebrated train that winds through them to Ella. Above the tea, the higher slopes hold cool montane cloud forest, gnarled and moss-hung, and open patches of grassland known as patana. The highest summit of all, Pidurutalagala, reaches 2,524 metres above Nuwara Eliya, though it is topped by a communications station and closed to visitors.

Much of this upland core, the Peak Wilderness, Horton Plains and the Knuckles Range, is protected together as the Central Highlands of Sri Lanka, a UNESCO World Heritage Site recognised for its exceptional endemic life and its role as the island’s great water tower, where the rivers that irrigate the lowlands are born.

Adam’s Peak, Horton Plains and World’s End

Two of the highlands’ set-pieces draw travellers from around the world. Adam’s Peak, or Sri Pada, is a strikingly conical mountain of 2,243 metres, sacred to Buddhists, Hindus, Muslims and Christians alike for the footprint-shaped mark near its summit. In the pilgrimage season, from roughly December to May, thousands climb its long stone stairways through the night, the route lit like a ribbon of lights, to reach the top for sunrise, and for the peak’s extraordinary triangular shadow, thrown across the clouds and hills as the sun comes up.

Higher and wilder is Horton Plains National Park, a bleak, beautiful plateau of grassland and stunted cloud forest at over 2,000 metres, cold enough for frost on winter mornings. A well-trodden loop walk leads past the Baker’s Falls to World’s End, a sheer escarpment where the land simply drops away for hundreds of metres to the plains far below. On a clear early morning the view runs all the way to the distant coast; by mid-morning it is usually swallowed by mist, so an early start is essential.

Rainforest and the wet zone

In the humid south-western lowlands lies Sri Lanka’s most precious woodland: the Sinharaja Forest Reserve, the island’s last substantial stretch of primary lowland rainforest and a UNESCO World Heritage Site. Under a closed canopy dripping with rain, Sinharaja shelters an astonishing density of endemic life, trees, orchids, birds, frogs, snakes and butterflies found nowhere else, and birdwatchers come for its famous mixed-species feeding flocks. It is a reminder of what once covered the whole wet zone. Centuries of clearing for tea, rubber and rice have left only a fraction of that original forest standing, which is exactly why the surviving patches matter so much.

The dry zone and the national parks

Across the north, east and south-east spreads the dry zone, a hotter, more open country of scrub jungle, grassland and countless man-made lakes. These reservoirs, or tanks, are one of the wonders of Sri Lanka in their own right, a vast irrigation network begun more than two thousand years ago by the kingdoms of Anuradhapura and Polonnaruwa, storing the monsoon rains to green the plains through the dry months. Today the dry zone holds most of the island’s great national parks. Yala, in the south-east, is the most visited, renowned for one of the highest densities of leopards on Earth; Wilpattu, in the north-west, is the largest and least crowded, studded with natural lakes; Udawalawe is the surest place to see wild elephants; and Minneriya and Kaudulla, near Sigiriya, host the seasonal spectacle of the Gathering.

The coast and the ocean

No point in Sri Lanka is more than about 130 kilometres from the sea, and its roughly 1,340 kilometres of coast are among its greatest natural assets. The south and west are lined with palm-backed beaches, from the surf and turtles of the south coast to the calm bays near Galle; the east coast, quieter and drier, has its own superb strands at Trincomalee and Arugam Bay. Offshore lie coral reefs, seagrass beds and lagoons, and shallow sandbanks, most famously Adam’s Bridge, the chain of shoals and islets that all but links the island to India. But the real drama is out in the deep water, which comes unusually close to shore here.

A biodiversity hotspot

Together with the Western Ghats of India, Sri Lanka forms one of the planet’s 36 biodiversity hotspots, regions extraordinarily rich in life and extraordinarily threatened. The roll-call is remarkable for so small an island: the endemic Sri Lankan leopard, top predator of the dry-zone parks; some 6,000 wild Asian elephants; secretive sloth bears; troops of langurs and macaques; crocodiles, spotted deer, and a wealth of reptiles and amphibians described only in recent decades. Around 34 bird species live nowhere else on Earth, and the island lies on migration routes that bring flocks of visitors each winter. Offshore, the seas are a global stage for whales: blue whales, the largest animals ever to have lived, feed close inshore off Mirissa in the south (roughly December to April) and off Trincomalee in the east (around March to August), alongside sperm whales, spinner dolphins and more.

When to go

Because two monsoons soak opposite coasts at different times, there is no single best season. It depends on where you want to be. Broadly, the dry-zone parks such as Yala are at their best in the drier months from around February to July, when animals concentrate at shrinking waterholes; the Gathering at Minneriya peaks from August to October; and whale-watching follows the calm seas, off the south from December to April and off the east from spring. The cool, green hill country rewards a visit almost year-round. For a fuller month-by-month picture, see our guide to the best time to visit Sri Lanka, and our map and overview of the island to see how these regions fit together.