Do you need to update certification for SCUBA dive?

Yes. There is no law that prevents uncertified divers diving. However, most shops require some kind of training for liability reasons.

However, many organisations (including PADI), offer "discover Scuba diving" courses (sometimes referred to as "resort courses" because they are often done on holiday), which take just a half a day, and allow you to dive under the supervision of an instructor to limited depths.