If you quite adventurous then I have a option for you . if you thinking about June July then I can say you it must be go for mount Abu that is a best option you can think. you think, it's quite unorthodox but not, when it's all over Rajasthan is too hot then it is a perfect time to go there . then you can realise how beautiful the weather over there. and any place in Kerala it must be December
You can choose bhutan, I went there during August,19. it's a safe country for girls and people are very helpful.if you want to explore a peaceful and relaxing holiday I will recommend you Bhutan .
1st solo. Do it abroad. It'll be safe and revealing I suggest South East Asia, Europe,UK, Dubai or Kuwait, Australia, Japan,China, Sri Lanka, Singapore, HK, Nepal,Bhutan. Places where girls are treated with respect