Cape St. Mary's: gannets on Newfoundland's wild coast

Cape St. Mary’s Ecological Reserve on the southwestern tip of Newfoundland’s Avalon Peninsula is one of the most extraordinary wildlife viewing sites in Canada. A 1.5-kilometre walk across open headland leads to a cliff-top above Bird Rock — a massive sea stack separated from the mainland by a narrow chasm, occupied by 11,000+ breeding pairs of northern gannets that cover nearly every square metre of its upper surface. The noise, the smell, and the proximity of the birds (close enough to make eye contact with individuals on the nearest edge of the stack) create an experience that consistently ranks among Atlantic Canada’s most memorable wildlife moments.

This guide covers the practical details of visiting Cape St. Mary’s: when to go, what to expect, how to plan the drive, and how to combine the reserve with the broader Avalon Peninsula experience.

What you’ll see

Northern gannets are the showpiece — the largest seabirds in the North Atlantic, with a 2-metre wingspan, striking white bodies, black wingtips, and a distinctive pale yellow head. Cape St. Mary’s holds 11,000-14,000 breeding pairs (numbers vary annually) that arrive in April, lay eggs in May, raise chicks through summer, and depart by late October. Seeing gannets diving — folding wings and striking the ocean from 30 metres in the air — is one of the most dramatic sights in seabird natural history.

Common murres and thick-billed murres nest in the tens of thousands on the same cliffs as the gannets. They occupy the lower cliff ledges in dense colonies. The noise of a murre colony is astonishing.

Black-legged kittiwakes (small gulls) form additional nesting colonies on the cliffs.

Razorbills — the smaller, penguin-like cousins of the gannet — nest in smaller numbers.

Other species observed from the reserve: various pelagic species visible offshore (shearwaters, petrels), peregrine falcons (which hunt the seabirds), minke and humpback whales in the adjacent waters, and occasionally orcas (rare but recorded).

Flora: the headland itself is covered in a distinctive subarctic vegetation — dwarf spruce, heaths, lichens, and bog communities. The Cape is one of the furthest-south examples of true barren coastal tundra in North America.

The visit in detail

The Interpretive Centre at the reserve entrance has good exhibits on gannets, seabird biology, and Newfoundland’s coastal ecosystems. Knowledgeable naturalists staff the centre and provide orientation. The centre is open daily from mid-May through mid-October; check seasonal hours. Entry is free.

The walk to Bird Rock (1.5 km each way, 3 km round trip) begins behind the interpretive centre. The trail crosses open headland — fairly level terrain with some undulation, uneven ground (grass, rocks), and no protection from weather. Allow 30-45 minutes’ walking each way plus 30-60 minutes at the viewpoint.

The viewing experience: the trail ends at the edge of the cliff directly opposite Bird Rock. The stack is perhaps 15-25 metres away across a narrow chasm, with hundreds of nesting gannets visible at close range. A low railing is present at the cliff edge. The experience is genuinely sensory — the noise of 20,000+ adult gannets and their chicks, the smell of the colony (substantial — this is not a delicate experience), and the visual density of birds.

The lighthouse: the Cape St. Mary’s Lighthouse (1860, rebuilt) sits adjacent to the interpretive centre. Functional, not open to tours.

When to go

June and July are peak — gannets are actively feeding chicks, flight and diving activity is constant, and other species are at full colony numbers. Photography is at its best.

Mid-May to early June shows arriving gannets building nests and laying eggs. Activity is strong but slightly less concentrated than later in summer.

August and early September: young gannets are fledging, adults still feeding, activity remains high. Fewer visitors than peak summer.

Late September to mid-October: gannets begin to depart; the colony empties. By the end of October most birds are gone. The landscape remains spectacular.

October 15 to mid-May: closed season for the gannet colony. The interpretive centre is closed. The area is open for hiking but the wildlife experience is limited.

Time of day: morning and evening provide the best photographic light. The Cape’s west-facing orientation makes sunset particularly dramatic when weather cooperates.

Weather: Cape St. Mary’s is extremely exposed. Fog is common (and can reduce visibility to the point where the colony cannot be seen at all — checking the forecast is essential). Wind is frequent. Bring warm layers regardless of the temperature in St. John’s.

Practical information

Location: end of Route 100 on Newfoundland’s Cape Shore, Avalon Peninsula. Approximately 200 km from St. John’s.

Driving time from St. John’s: approximately 2.5 hours, depending on route.

Fees: no admission fee to the reserve or the trail.

Facilities: interpretive centre (seasonal), washrooms, small café, gift shop. No food service beyond the café; pack lunch/water.

Accessibility: the 1.5 km trail is not wheelchair accessible — grass and uneven terrain. A shorter viewing platform near the interpretive centre is accessible and provides views of the lighthouse and headland (but not Bird Rock).

Parking: free at the reserve entrance.

Weather preparation: dress for 10°C cooler than St. John’s, with a windproof outer layer essential. Rain gear recommended regardless of forecast.

Fog risk: check the forecast. Cape St. Mary’s is frequently fogged in. If the forecast indicates fog, consider postponing the visit — the gannet colony cannot be appreciated in low visibility.

Getting there

From St. John’s, take Route 1 (Trans-Canada) west to Route 13 south at Holyrood. Route 13 connects to Route 100 at Placentia. Route 100 heads south along the Cape Shore to the reserve. Allow 2.5 hours each way.

The drive itself is scenic — coastal fishing villages, the Placentia Bay landscape, and views across to Placentia Bay. The drive passes through Branch (worth a brief stop for lunch) and Point Verde. The last 40 km from Branch to the reserve are along a partially unpaved road — well-maintained but slower.

Rental car: essentially required. There is no public transit.

Time budget for a day trip from St. John’s: allow 7-9 hours total — 5 hours’ driving, 2-3 hours at the reserve.

Where to stay nearby

Branch has a small inn and bed-and-breakfast options. Staying locally allows early-morning or late-afternoon access to the reserve in optimal light and removes the driving pressure.

Placentia (60 km from the reserve) has more accommodation options — motels and heritage inns. Placentia also holds Castle Hill National Historic Site, worth a stop on the return to St. John’s.

St. John’s is the usual base for most visitors. The day trip works but is long.

Cape St. Mary’s within a Newfoundland trip

The reserve is one of three can’t-miss wildlife sites on the Avalon Peninsula (the others being the Witless Bay Ecological Reserve puffin colonies and Cape Spear). A combined seabird day combining Cape St. Mary’s with overnight in Placentia and a boat tour to Witless Bay on a subsequent day is a classic two-day seabird itinerary.

For St. John’s visitors, Cape St. Mary’s is among the highest-reward day trips available. It is the second most-photographed Newfoundland wildlife experience after Witless Bay puffins.

The Newfoundland 7-day itinerary typically reserves one full day for Cape St. Mary’s.

What to combine

Castle Hill National Historic Site at Placentia — 17th-century French fortification with excellent interpretive programs. Good morning stop on the return drive.

Placentia Bay coastal drive — continuing past the reserve along the coast provides further scenic driving and small-community stops.

Witless Bay puffins — a different experience (boat tour, puffin focus) but natural complement. A two-day combination of Cape St. Mary’s (gannets) and Witless Bay (puffins) gives a complete Atlantic seabird experience.

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Why visit Cape St. Mary’s

Few wildlife experiences in North America offer this combination: a globally significant seabird colony, at land-based arm’s-reach distance, with no boat required and no admission fee. The reserve is entirely free, operates on the visitor’s own schedule, and rewards a half-day commitment with an experience that many visitors describe as the single most memorable of a Newfoundland trip.

For birders it is essential. For general visitors it is among the most viscerally impressive natural sites on the continent. The drive is long but the reward is substantial. On a clear day with wind from the west, standing 15 metres from 10,000 gannets is something the memory keeps permanently.

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