At the risk of stating the obvious, putting on a mask and looking under the sea is like having a souvlaki in the pitta, its just one of those things you simply have to do. In fact the question is not if you should, but how deep.
In fairness its not the Great barrier reef or the waters of Barbados but it will keep any diver happy for as long as he can hold his breath and without having to worry about unfriendly creatures have a taste.
And safety is one of the great appeals of these waters, particularly the east coast which is so well protected from the weather where you can dive any day during the summer, irrespective of wind conditions as the waters are always calm and above all clear.
The temperatures also are very friendly, you can easily snorkel for a couple of hours without a wet suit, while a light suit will keep you warm and comfy at greater depths.
Being such a good destination it is well catered for by a large number of dive centres at all the popular destination so you can just turn up with your swimsuit and sunglasses, everything else can be arranged, whether you want to try for the first time, or go cave diving.
There are literally tens of dive spot around the island to choose from which include wrecks, caves and reefs, with the majority of them clustered around the North Eastern point of Kassiopi and North Wester point of Paleokastritsa, both surrounded by rugged lush green coastlines adding to the whole appeal.
With so many dive sites, many of which in sheltered waters, means you can be diving every single day of a two week holiday and still only see half of what there is, so planning and choosing you favourite spots is essential.
Greece has various rules and regulations regarding scuba diving, mostly concerning archeological findings, so it is important to ask in advance if and how a site is open to diving.
But for you own safety and comfort, particularly if new to these waters, it is highly advisable to join any one of the many professional dive centres and go along their organized dives. These waters may be far safer than those in Australia or the Caribbean but there is no substitute for experience when it comes to the sea.
If you can't be bothered with the complexity or expense of scuba diving, snorkelling is an excellent alternative and with so much to see at shallow depths, its more likely to be sunburned than bored, especially if take an underwater camera along.
Which brings us to the clarity of the waters. The region being of volcanic origin and the lack of significat rivers dumping muddy waters create the deep blue waters for which the Greek islands are so famous for. Corfu is no exception, in fact its one of those place that have created the rule and the East coast in particular, with its predominantly offshore winds is exceptionally clear, visablity exceeding 20m so an underwarter camera is a well worth addition to your bag of goodies.