Large patches of strawberry guava occur within the reserve.

These small, scaly patches are caused by too much sun, and commonly occur on the head, neck, or hands, but can be found elsewhere.

Some patches occur on granitic rocks, usually where these are soft or crumbling.

Smaller patches of smooth plains occur in depressions and old crater floors.

These patches often occur to both sides symmetrically and may change shape.

In places small patches of heather still occur where more light can penetrate through the leaf.

Conspicuously, also a white patch occurs under just behind each flippers.

A small patch of littoral rainforest occurs on the island.

Your patch of light must have occurred in this way.

These small dark patches on the Sun's surface occur where the underlying magnetic field breaks through.