What to do if my Vauxhall Corsa's engine is overheating?

I noticed that the temperature gauge on my Vauxhall Corsa is getting dangerously close to the red zone. What steps should I take to avoid causing any damage?

First, make sure to turn off the A/C to lessen the strain on the engine. Then, pull over to a safe location and turn off the engine.

Check the coolant level and add more if necessary. If you don't have coolant with you, water can be used as a temporary solution.

While waiting for the engine to cool down, check if there are any visible leaks in the cooling system. If there are, do not attempt to start the engine again until it has been fixed.