Where to go on a second trip to Sri Lanka

This is the biggest gap. Jaffna is eight to nine hours from Colombo by road or ninety minutes by air, and it does not fit a two-week first trip that also covers the standard loop. It is also the most culturally distinct part of Sri Lanka: Tamil-majority, Hindu, with its own cuisine built on palmyrah and tamarind, and a landscape of limestone, palmyrah palms and shallow lagoons that looks nothing like the south.

The islands off the peninsula are the highlight. Delft, reached by an hour's ferry, has free-roaming wild ponies, field walls built from quarried coral, Dutch fort ruins and a giant baobab. Nainativu holds a major Hindu kovil and one of Buddhism's sixteen holiest sites a few hundred metres apart. Give Jaffna three nights.

The east runs on the opposite season to the south, which is precisely why first-time itineraries miss it: a December visit to Sri Lanka cannot include it. From May to September, Trincomalee and Nilaveli offer the best beaches in the country, with Pigeon Island providing the only genuinely world-class reef snorkelling on the island.

South of there, Pasikudah's reef-protected bay is shallow enough to wade a hundred metres, Batticaloa is a lagoon city with a Dutch fort and the singing fish tradition, and Arugam Bay has the long right-hand point break that draws surfers from across Asia. Kumana National Park, next to Yala but with almost no jeeps, closes the run.

Sinharaja Forest Reserve is a UNESCO World Heritage lowland rainforest holding the large majority of Sri Lanka's roughly 33 endemic bird species, plus endemic lizards, amphibians and the purple-faced langur. Its mixed-species feeding flocks are among the most studied in the world.

It is genuinely world-class and almost entirely absent from standard itineraries, largely because it requires two nights, a guide, and a willingness to deal with leeches. Anyone with an interest in wildlife beyond leopards and elephants should make it a priority. A guided night walk here is one of the most underrated experiences in the country.

If Yala's jeep congestion was the disappointing part of your first trip, Wilpattu is the answer. It is Sri Lanka's largest national park at around 1,300 square kilometres, defined by its villus, natural sand-rimmed lakes, and it receives a fraction of Yala's traffic.

Sightings take longer and are less certain, and when they come they are usually yours alone. It is also the best park for sloth bears, particularly during the palu fruiting season around June and July when bears climb the trees to feed. For a returning visitor who has already had a leopard, that trade is clearly worth making.

Yapahuwa, a rock fortress north of Kurunegala that served briefly as capital in the thirteenth century, has one of the finest carved staircases in South Asia and you will often have it entirely to yourself. Avukana's twelve-metre standing Buddha, carved from living rock in the fifth century, takes forty minutes and is astonishing.

Mihintale, twelve kilometres from Anuradhapura, is where Buddhism arrived in Sri Lanka in the third century BCE and is a dawn climb of 1,840 steps. Ridi Vihara, Panduwasnuwara and the Sasseruwa Buddha near Avukana complete a genuinely rewarding quiet-heritage circuit that runs alongside the main Cultural Triangle route.

Kalpitiya on the north-west coast for kitesurfing from May to September, dolphins from December to April, and the Bar Reef, Sri Lanka's largest coral system. Mannar and Adam's Bridge for baobabs, wild donkeys and a chain of sandbanks running towards India.

Riverston and the Knuckles for serious trekking and Mini World's End, a thousand-metre drop reached in twenty minutes from the road. Haputale and Lipton's Seat for tea country without Ella's crowds. Batticaloa's singing fish. Kirinda and the Great Basses. All of these are two or three hours from somewhere you have already been.

Pick the season first, because it determines whether you get the east and north or the south and hills. A May to September return trip should run Cultural Triangle, Jaffna, Trincomalee and Nilaveli, down the east coast to Arugam Bay, and out through Ella. A December to April return should run Sinharaja, Wilpattu, the quiet ancient sites, Haputale and the deep south.

Second trips also benefit from staying longer in fewer places. You have already done the circuit; you do not need to prove you can. Four nights in Nilaveli or three in Sinharaja will give you more than another set of one-night stops.

The single best decision a returning visitor can make is to commit to one half of the island rather than repeating the loop with additions. The north and east together are a completely different country from the south-west, and they are best experienced as their own trip rather than as an appendix.

Lankan Stays & Trails plans returning-visitor itineraries around what you did not see, and will happily build a trip that never goes near Sigiriya.