Just come back from another 2 weeks in Thassos.
We hire mopeds, not recommended, but hey! it's a holiday
You can drive round the island in less than 3 hours by car.
The book you can buy from most places is very historical and won't give you the important info - nice beaches, cheap food etc etc....
We've found the prices have increased in the last two years and always look at a menu for the prices of a) greek salad varies between 1.80 euros and 5.00 and b) ouzo - ditto.
Thassos Town (Liminas) has some nice places to eat. Turning right, from ferry, you'll come across a place called Mouzes (mouses) you'll recognise it from the octopus drying on the line opposite. Always full of Greeks, which is a good sign.
Other end of the town is the boat yard - go as far as you think you can, and then more.... Family run place, there is a yacht that they have been building for the last 3/4 years, due to be ready September. Awesome place to watch a sunset.
Aliki - worth a drive for the beach bar, cool music, lovely safe cove for swimming. Bit pricy now, but the atmosphere is always very chilled.
Megolos Prinos - Two tavernas up in the mountains.
Potos, Lininara, Skala Potamia and Golden Beach are very touristy. Pefkari has a nice beach with bars and watersports.
Kavala (mainland) has a busy market on a Saturday until 2pm. The hydrofoil (dolphin) will take you across for 16 euros pp return from Thassos Town. Locals selling fruit and veg and local brew 'tipporou' or something (loony juice) airlines won't let you drink it on-board. Turkish made cottons and very cheap clothes. We walked down a main street filled with beautiful people - probably the Manchester equivilent of Deansgate etc.....
Prinos has market Monday - mainly same traders as Kavala.
The cheapest supermarket we found was on the road out of town towards Prinos.
Panagia - you can get goat on a spit, the roads are made up of marble blocks and a stream runs right the way through. If you drink the water from the fountain in the square its either supposed to make you mad or pregnant - depending on who you ask!!
Erics Bar - you'll see lots of adverts for it. Skala Potomia - he boasts the only headed pool on the island, which, when we go in May is very welcome, but in August, think you won't need to visit! Lovely clean pool, no charge for the beds and his apartments are now with Thomas Cook (expensive we thought when he showed us the brochure) Only problem we found is that the pool fills up with the local children at weekends and after 1pm weekdays. So don't go if you want to do 'laps'
El Greco in Thassos Town is run by Jill (from Sheffield) husband is Greek and he cooks, good food, big clean bar.
There is a whole lot more I could tell you............ if you want anymore info PM me and I can email you.
Enjoy
Jo xx