Bro. Why dont u try Northeast India. U can complete a whole circuit of Northeast in 3 months. Very less commercialized but ample of natural beauty.
Lakes, Hills, Mountains, Snow, islands, Jungle, Rhinos etc etc. U name any we have it all. Oh no sea beaches though😬
1) ladakh in Summers for exploring nature at it's best
2) Tosh in Himachal Pradesh
3) Kasol by sitting next to Parvati River
4) Prashar lake by spending days and night in tents
5) khajjiar - mini Switzerland of India 6) Auli to experience snow and nature with many other places around.