There are many varieties of birds nest on shingle beaches. Care should be taken not to disturb nesting birds on these sites. The eggs and chicks are very well camouflaged against the shingle and are easily trodden underfoot. Check before you plan your trip as to the nesting arrangements etc of the birds and mammals in the area you plan to canoe in.
Take care during stops not to damage vegetation on dunes, which is important for stabilising and helping them grow. Carry canoes/kayaks rather than dragging them, especially in dunes.