Key takeaways
- Ytri Tunga hosts seals year-round, but they're most active on shore during breeding season (May - June) and again in autumn (September - October).
- Breiðafjörður bay attracts minke whales and white-beaked dolphins from June through August, with peak sightings in July and August.
- Puffins nest along Snæfellsnes Peninsula cliffs from April to August, with the largest colonies visible May through July.
- White-tailed eagles breed on Breiðafjörður cliffs and are spotted most reliably from March through August.
- Icelandic horses graze freely beside roads across the peninsula throughout the year, descended from Viking-age stock.
Seals at Ytri Tunga
The beach at Ytri Tunga is Iceland's most reliable seal-watching site, and the Snæfellsnes Peninsula tour includes this essential stop. Grey seals and harbour seals haul out on the black sand and rocks throughout the year, though numbers peak in summer when pups are born. You'll see them resting between feeding sessions, often in groups of five to twenty individuals.
Safe viewing means staying at least 150 metres from seals on land. They spook easily and will flee to water if approached, wasting energy they need for survival. Use binoculars or a telephoto lens, stay downwind if possible, and move slowly. The seals tolerate patient observers who respect their space; rushing forward teaches them to fear humans and disrupts their rest cycles.
Whales and orcas in Breiðafjörður
Breiðafjörður bay, which borders the Snæfellsnes Peninsula, draws multiple whale species to rich feeding grounds. Minke whales are most common, appearing from April through October with peak activity in summer. Humpback whales, white-beaked dolphins, and harbour porpoises also hunt here seasonally. For the best chance of close encounters, a Grundarfjörður boat tour offers direct access to these waters where cetaceans feed near the surface.
Orcas, or killer whales, are rare but not impossible in these waters, typically spotted in winter months. Sightings depend entirely on prey movements and cannot be guaranteed. Spring and summer favour minke and humpback whales. If marine mammals interest you most, ask your tour operator about the timing that suits your visit.
Harbour seals rest on pale sand at Ytri Tunga at low tide
Puffins and cliff-nesting seabirds
Dramatic cliffs along the peninsula host thousands of nesting seabirds from April to August. Puffins are the stars, with their bright beaks and clown-like faces drawing crowds to viewpoints near Arnarstapi and Londrangar. The birds burrow in soil above sea cliffs, diving for sand eels and small fish to feed chicks hidden underground.
Beyond puffins, razorbills, guillemots, fulmars, and kittiwakes crowd the same ledges and crevices. Each species uses different cliff heights and nesting strategies. The chaos peaks in late June when chicks are largest and parents hunt constantly. Visit between late May and mid-July for the highest density of birds and most active behaviour.
White-tailed eagles
White-tailed eagles breed on Breiðafjörður and the surrounding coastline, making a dramatic comeback after near-extinction in Iceland. These massive raptors, with wingspans exceeding two metres, nest on cliff faces and tall coastal rocks. They hunt fish, seabirds, and young ducks, so sightings often occur near water or above seabird colonies.
Arctic foxes and roadside horses
Arctic foxes inhabit the peninsula but remain elusive; sightings are exceptional rather than routine. They den in rocky terrain and hunt small mammals and seabirds, most active at dawn and dusk. Your chances of seeing one are slim, though tracks and signs prove they live here.
Icelandic horses, by contrast, are impossible to miss. These sturdy, thick-coated animals graze beside roads throughout the peninsula, descended from Viking-era stock. They're semi-wild, left to roam free in summer, and return to farms before winter. Stop safely to photograph them, but never approach or feed them without permission from the landowner.
Best seasons for wildlife
Late spring through early autumn (May to August) offers the widest variety of wildlife and the most reliable sightings. Seals are present year-round, but puffins and nesting seabirds vanish by September. Whales favour the warmer months when fish concentrate in shallow bays. Winter brings orcas and fewer tourists, but harsh weather and short daylight limit visibility. Plan your tour between late May and mid-August for the fullest wildlife experience on the Snæfellsnes Peninsula.
