Early morning flight gets you to Bagdogra (near Siliguri) quickly so you maximize time in Sikkim; typical flight time ~2h15m. Book early for best fares.
MG Marg is the pedestrian heart of Gangtok — good for a relaxed stroll, people-watching and picking up sim/permits info; shops typically open 9:00–21:00.
Do Drul Chorten stupa and the nearby Tibetology institute showcase Buddhist artifacts and are essential for understanding Sikkimese Buddhist culture (typical hours 9:00–17:00).
Full-day guided/shared taxi trip to Tsomgo (Changu) Lake and Baba Mandir. Expect early departure; this is a long but immensely scenic day. NOTE: Tsomgo/Baba often require permits and ID — Indians generally need to carry original photo ID; confirm permit process before departure.
High-altitude glacial lake (typically open to visitors ~6:00–16:00 depending on weather). Walk around, enjoy yak rides (optional), and photograph the striking turquoise water surrounded by peaks.
A landscaped waterfall park celebrating Sikkimese shamanic traditions; typically open ~8:00–17:00 and a pleasant short visit for photos and a light walk.
Use the afternoon to pick up last-minute shopping, try street momos, or rest at your hotel. Good time to check travel permits/confirm return transport.
Return journey by road to Bagdogra airport or NJP station. For comfort and time-savings choose a private taxi if budget allows; shared transfers are cheaper.