It is now commonplace for a holiday resort to offer some sort of scuba training course, sometimes in the hotel pool, to give guests a taster of scuba diving, and it’s more than likely that destinations suitable for scuba will have local companies that offer the chance to sample it. If you do decide to give it a go, make sure the company is reputable and that they are authorised to take you diving, with all the correct safety equipment and expertise, and not just a local person who may not be qualified and could prove unsafe to trust your dive with. It is not worth risking your safety, and indeed any insurance cover you have, no matter how cheap a local (and probably unqualified) guide is.