Galle is located on the south coast of Sri Lanka and is about 2 hours from Colombo (see 'Getting There'). Perfectly located for trade routes to Europe, Galle was previously occupied by the Portuguese before the Dutch and the English had a go, the old town is built within European style walls complete with a lighthouse and only one gate in and out. The new town has since expanded outside the walls but most people come to visit the old town and the walls themselves.
Inside the walls the streets are incredibly clean and cater fully to tourists, there are plenty if boutique hotels, quirky cafes and handmade gift shops.
About a 30 minute walk from the fort is the Sea Turtle Hatchery, it costs Rs500/pp and you only need about 30 minutes there. As well as hatching babies they also take in injured turtles and the staff do a really good job explaining all the different species etc.
There are other hatcheries in Sri Lanka who let tourists release babies into these a but you can't do that here. A baby released during the day on its own has an almost 100% death rate, it's an unethical practice and the staff in Galle Hatchery really seem to care about the welfare of the animals.
We chose to stay overnight but if you're short on time, Galle can certainly be done as a day trip from Unawatuna. There were lots of direct busses from the Main Street in Unawatuna, travel time is approx 30 minutes.
Where to Say:
The hotels inside the fort were quite expensive, we stayed about 25 minutes walk away at the hotel Hasara. It was a great budget option, basic but had A/C and a free breakfast. Worth noting that it was up a very dark path with no street lights, either take a torch with you (we just used my phone) or take a tuk-tuk for Rs200.
From Colombo there are a few trains per day, we visited the tourist information stall in Colombo the day before who told us that we couldn't pre-book tickets for this train and that tickets were Rs80/pp and the journey was about 2.5 hours. When you get to Galle station you can take a tuk-tuk for around Rs100.
We had abit of a disaster in Colombo and Sean got serious food poisoning, we didn't know what the bathroom situation would be onboard and it didn't seem fair to have him sitting vomiting into a bag the whole trip. We asked the receptionist to book us a private driver which cost Rs9,000, which is completely over the average, but we were desperate and in no position to negotiate. The drive took 2 hours.