Reverseton/Knuckles lives up to the expectations
Nuwara Eliya,
Anuradhapura,
Polonnaruwa,
Sigiriya,
Upcountry train ride,
Yala, Udawalawe etc.,
Pasikuda, Nilaweli,
Whale watching
live up to the expectations.
I think SL has more variant destinations than any other country. you can choose as per your preferences.
That trendy places where people go camping are not that good.