Kos town is a dive, but a nice one at that.
If you like drinking. Worth a trip or two from Kardamena.
It's not all Brits abroad - it's HUGE with the Scandanavians, which is a refreshing change.
Plenty of Swedes, Norweigans and Danes.
The castle on the harbour built by the Knights of St John, it's great, and yes, there is the tree of Hippocrates which is, well, a tree in the middle of a square in Kos town.
You must must MUST visit the old Roman hospital at Asklepieion!!!!!!
I'm really into my Roman stuff, and though it's not very well marketed, Kos town has lots of great sites, recent excavations of the ancient city brought to light building foundations of the Classical era (e.g. the Agora) and of Hellenistic and Roman times (the Gymnasium, Odeon, Roman baths, a Roman mansion with absolutely beautiful mosaics).
Also were found sections of wall from the Classical period, the foundations of a temple of Aphrodite (sadly most of the statues were plundered or made headless during the 2nd world war by Nazi fuckwits).
Other buildings include the Stoa (Colonnade), which housed Hippocrates' medical school and the Bomos or Great Altar (3rd century B.C.), which was decorated with sculptures attributed to the son of Praxiteles.
If you like that sort of thing.
I dig it, me. Not literally though.
Also, go to Thermes, with its hot springs and spa.
There ain't much historical stuff in Kardamena, so take the eastern bus and hire some pushbikes for 3 quid a day from the little glass fronted place opposite the jetski hire on the main road south from Kos town and pedal to all the old stuff (take water though!).
The nightclubs are crap. Chart crap on repeat play.
("Heeeeeyyyyy hey baby! Oooh! Ahh! I wanna knooo-oooooow will you be my girl?!")
*pk slowly loads shotgun and takes aim at the DJ booth*
I fucking HATE that song and all those who actually like it.
Ignore the famous club names (Cream, Ministry, etc.) - they're not the same and they're overpriced shite.
Even more so than the originals.
But do, please, take a boat out to Nisiros. It is truly beautiful.
A dormant volcano lies at the end of a heartstopping coach trip once you have made the hour long boat journey there from Kardamena.
It is SOOO worth the wait, like being on Mars or something...
Hope this helps!!!
Hope the picture of Nisiros volcano works!
You'll love it, I do, say hi to the old place for me.