The visitor centre is open from the end of May to the end of September from 2 - 5 pm, Tuesday to Sunday inclusive.

Scarlett has spectacular geological formations with pavement-like limestone strata near the visitor centre contrasting with the rugged volcanic rocks in the vicinity of the Stack. There is a disused limestone quarry and old limekilns. The Trust Visitor Centre is the former office for the quarry. There are displays about the rocks, fossil and limekilns as well as the plant life and seashore life.

The nature trail starts by the quarry and leads on to the limekilns and maritime heath. The plants in the area include sea campion, birdsfoot trefoil and the beautiful blue spring squill. Fennel pondweed grows in the freshwater pool, near the storm beach and rock samphire can be found nearby in saltier pools. On a clear day it is possible to see almost the entire mountain chain of the Island at the furthest point on the nature trail from the visitor centre.

A great variety of birds can be seen at Scarlett including shag, cormorant, gulls and auks. Waders and ducks include oystercatchers, ringed plover, turnstone, mallard and shelduck. Herons are often standing in the shallow waters watching for fish and sometimes basking sharks can be seen. Along the nature trail the meadow pipit, wheatear and stonechat are often seen.

How to get to Scarlett Visitor Centre: Turn down the coast road west of Castletown. There is a car park by the disused quarry.