Below are the places you shouldn't miss: Gangtok
Gurudongmar Lake
Kaala Patthar
Zero Point
Yumthang Valley
Tsongmo Lake
Nathula Pass
Baba Mandir
Buddha Park in Ravangla
Khecheopalri Lake
Tou can cover Gangtok, Lachung, Pelling and if time permits you can also visit Darjeeling(give it a last priority) Dont miss : Changu Lage and Nathula pass(Gangtok) Gurudongmar Lake, Yumthang Valley and Zero Point( Lachung and Lachen) Pelling