The Great outdoors
Dramatic, varied and remarkably beautiful, the north's great highlight is the Yumthang Valley, though required permits and rushed tours can make a visit more stressful and less rewarding than it need be. For Indian citizens, a second great attraction is crag-rimmed Gurudongmar Lake but it's out of bounds to foreigners, who must stop short at Tsopta (or even Lachen if full regulations are enforced).
Top Sights in North Sikkim.
Explore the fertile heartland, showcasing lush forests, rugged mountains, and steep gorges. Get off the beaten track and you'll be richly rewarded.