Just off the road above the lighthouse, the RSPB-run Ellin's Tower Seabird Centre is the ideal place to look down at the island's choughs, fulmars, kittiwakes, guillemots, razorbills, gulls and, from about mid-April to July, puffins. Follow South Stack Rd for about 2 miles to a car park - it is located at the road's end, where there is also a café.