Hi again
In my previous post I wrote that I will give information for hotels in Halkidiki. I was a bit optimistic about this because actually have an idea only about the hotels of the Athos area of Halkidiki. With a quick search I did on travel republic the prices are variable depending on the hotel.
I will post for the hotels I know in the Athos peninsula and some general information for accommodation in Halkidiki.
Even though the area of Athos that is open to the general public is quite small there are many hotels in the area. Between the villages Nea Roda and Ouranoupolis there is two 5 star, two 4 star and three 3 star hotels. Most famous hotel in the area is the Eagle's Palace Hotel, probably one of the most luxurious hotels in Greece (members of the British Royal family seem to prefer this hotel). It is a bit expensive, but if you are in the area you could just visit it for a diner or a swim in their swimming pool (has a bar inside the pool!!) or private beach. For more info http://www.eaglespalace.gr/ . Another hotel of the area is hotel Alexandros. This is a five star hotel as well with a great location and a great swimming pool (has a private beach as well). I think there is a spa as well. Again not very cheap but for sure cheaper than Eagle's Palace. For more info: http://www.alexandroshotel-halkidiki.com/. A similar style hotel is hotel Aristotelis. This one has a great view of the sea and all the usual (swimming pool, private beach, spa etc). For more info: http://www.aristoteles.gr/ . Another good choice is Xenia hotel in Ouranoupolis. This has the advantage to be cited in the village of Ouranoupoli. It has also a private beach and swimming pool. I couldn't find an official website but I found this for extra info: http://www.greatlatedeals.co.uk/Hotels/HotelCriteriaEstab.aspx?EstabId=289152&mkid=35857883&aid=1 . Finally Hotel Akrathos is probably the cheapest amongst the hotels i suggest. I think it's a 3 star hotel. For more info: http://www.bookhotels.gr/hotel_card.asp?id=229
There are numerous hotels in the other two penninsulas of Halkidiki, Kassandra and Sithonia. In Sithonia the most famous hotel is Porto Karras that offers pretty much everything (from golf, horse riding to casino). Again one of the most luxurious hotels in Greece. The EU leader summit was held in this hotel a few years ago. If you want to spent a bit more it really worths the money. For more info: http://www.portocarras.gr/
In Kassandra again the only hotel I have visited is Sani Resort. Similar to Porto Karras it offers all kinds of amenities. For more info http://www.saniresort.gr/page/
However in my opinion you could find a self catered room/studio in any place in Halkidiki that will cost you around 60 euros/night (for a double room). Unfortunately most of these places you have to see them by yourself to decide if you like them. Most of them are quite nice and good value for money. They can be booked on the day, and usually in most of the villages you will pass or even on your way between villages you will find signs that advertise self catered rooms.
If you are more adventurous you could try camping. There are many organised camping sites in Halkidiki, with the most famous in Sithoni: Armenistis and Kalamitsi. Armenistis is the most famous one it is very organised, clean and fun! I 've been there a few times and I enjoyed always. Amazing beach as well! For more info: http://www.armenistis.com.gr/. Kalamitsi has a diving centre so you could join a diving trip. Furthermore it has bungalows for those that don't like tents! For more info: http://kalamitsi.com/
I hope this is of some help. If you want suggestion for a place to visit in Halkidiki, please send me an email and I will try to help you with the accommodation.
That's all for now.