Kandy to South Coast train with lots of luggage — practical tips?

Trains have overhead racks and some space under seats, but space is limited. Keep valuables and essentials in a small daypack with you. For a large backpack, try to get it on an overhead rack or against the wall. 2nd class has more space than 3rd class. The journey involves changes at some stations — factor in time and help with luggage if needed. Many travelers manage fine with backpacks, but it's more comfortable with less luggage. If you have very bulky or heavy gear, a private driver might be worth considering for this route. Stations have porters if you need help carrying bags.