If you're into scuba diving, but don't have the time to jet out from Istanbul for the more widely acclaimed depths of the southern Aegean, then the diving available in Saros Bay will more than do the trick. Located a full three hours of driving west along the Sea of Marmara, this body of water in the northern Aegean near the entrance to the Canakkale Strait is chock full of wreck dives (including a handful of war ships from WWI) and a very interesting assortment of marine life.
There is a dive center in nearby Canakkale that does plenty of these shipwrecks, while the dives from the Gökçeada Diving Center focus predominantly on the locations within proximity to the island. The marine life, while not mind-blowing, includes plenty of lobster, red starfish, and a variety of colorful sponges, while there are some quality opportunities accessible to less-skilled divers and snorkelers in Morta Cove and Suvla Bay.
If you're making the trek this far into Turkey's west, then we ought to suggest a few activities that just might merit a longer stay. The aforementioned island of Gökceada (the country's largest) is quite mountainous and has a bevy of beautiful landscapes for the hiker in us all. For the more cultural adventurer, Gallipoli and Canakkale are rich with remnants of ancient Troy that even include a somewhat kitschy replica of the Trojan horse itself from the Brad Pitt-led Hollywood project based on these historic events.
Note:Our image is of Gökceada's Kuzu Limani marina.