I would suggest you to go on a short trek if you like mountains. For example, Triund trek that starts from Dharamshala.
You can also go to Bir Billing where you can trek to Billing and have an experience of Paragliding. Apart from that, hiire a cycle and visit the monastery. It's a perfect 3 days trip. If you are not interested in mountains much then travel to Udaipur via train. The weather currently is the best to visit the place.
Jaipur, Rajasthan: Known for its rich history, forts, and vibrant culture, Jaipur is about a 5-6 hour drive from Delhi. You can explore attractions like Amber Fort, City Palace, Hawa Mahal, and enjoy the local cuisine and markets. Rishikesh, Uttarakhand: If you're looking for a blend of adventure and serenity, Rishikesh is ideal. It's around 5-6 hours from Delhi and offers river rafting, yoga retreats, temples, and the peaceful Ganga ghats. Agra, Uttar Pradesh: Famous for the Taj Mahal, Agra is a 3-4 hour drive from Delhi. Apart from the Taj Mahal, you can visit Agra Fort, Fatehpur Sikri, and enjoy local Mughlai cuisine. Shimla, Himachal Pradesh: Around 7-8 hours from Delhi by road, Shimla offers a cool climate, colonial architecture, and beautiful mountain views. You can explore Mall Road, Jakhu Temple, and enjoy leisurely walks in the pine forests. Corbett National Park, Uttarakhand: For wildlife enthusiasts, Corbett is about 5-6 hours from Delhi. You can go for safaris, nature walks, and experience the wilderness. Make sure to check current travel advisories, weather conditions, and book accommodations in advance for a hassle-free trip. Enjoy your solo adventure! Visit: https://www.thedelhitours.com/