The observation train from Colombo to kandy is beautiful! Take tuktuks! The weather is nice, the drivers can recommend good local spots ( you'll learn quickly how to tell a tout from a friendly local! Go with the friendly local!!) and, surprisingly enough, we had good luck itch busses and they were crazy cheap! about 6 years ago
If you can take trains, if you take the bus always ask if there is an Intercity.. Buses are very cheap but adventurous at times. Agree Tuk Tuks are a super fun way around. You can always haggle and do stay away from Tuk Tuks waiting at corners especially in front of hotels!
If you are looking for some fun travel tips check out our Sri Lanka Blog: http://srilanka.for91days.com/ We are currently here for a total of 3 month and have 5 more weeks to go! almost 6 years ago