This is quite common, and there is a very simple solution. Some dive centres are very strict about this, and others more flexible, but if you haven’t dived in the last twelve months, you should take part in a ‘scuba review,’ which is a diving session in a pool, or a local/easy reef dive with a scuba diving instructor. He/She will review the necessary skills which you learned when you took the Open Water Diver course. Depending on how well you perform and how much you can remember, this ‘scuba skills update’ is usually fun, easy and very personal.