Historic, well laid-out botanical gardens with rare plants and a good orientation to the town; open typically 8:30am–5:30pm so plan an afternoon visit.
Scenic drive down the Nilgiri slopes (about 45–60 minutes); you can take the road or the Nilgiri Mountain Railway (book tickets in advance if riding the toy train).
Panoramic viewpoints and a pleasant waterfall — viewpoints are open all day though roads and short trails may require careful driving; best visited in daylight.
Iconic heart-shaped lake and summit views; trek typically starts early (forest permits required) and takes ~3–5 hours round-trip — check permit window and local guide availability.
Prehistoric petroglyphs on a hill — open usually around 9:00am–4:30pm; involves a short but steep climb and a hand-held permit/entry fee in many seasons.
Largest earthen dam in India with scenic island views; boating facilities normally available 9:00am–5:00pm (seasonal) — a relaxing late-afternoon visit.