The holiday beach resort of Marmari lies along the north coast at the eastern end of the island, about 15 kilometres from Kos Town, with good road access and regular buses.
The sands at Marmari are long and flat with good, soft sand and the odd patch of shingle and stone found here and there. It is a gently shelving beach so Marmari is a good holiday beach for families with younger children.
The area has seen very extensive hotel development in recent years and just about all of it is aimed squarely at the all-inclusive beach holiday market so the holiday visitor won't find much in the way of Greek character here.
Ranks of tavernas run along the back of Marmari beach and the sands are raked clean and swept clear of rubbish every day so, unlike many Greek island beaches, you shouldn't find too much litter about on the long beach.
As the beach is north facing, the winds can be a problem, especially in August, and seas can get choppy while banks of seaweed can also be quite prevalent.
For those that tire of the bland international atmosphere of all-inclusive hotels there is, about five kilometres inland, the attractive village of Pyli to visit where there are more traditional tavernas and cafes to enjoy.
There are frequent buses to Marmari beach from Kos Town for nightlife and there is boat hire in the small Marmari port.