In the morning after breakfast proceed for sightseeing..you have two options as follows:
1. You can go for boating at Naini lake and from there take cable to visit snow view point
2. You can go for lake tour in which you will visit *Sita Lake *Ram Lake *Lakshman Lake *Sat Tal *Hanuman Lake etc
In the evening return back to hotel and get relaxed

In the morning after breakfast proceed drive to Jim Corbett. Check in to the hotel and later go for Jungle safari...driver will pick you from the hotel and drop you in the front of hotel

In the morning after breakfast proceed drive to Haridwar. Check in to the hotel and get relaxed. Later you can go for sightseeing, you have two options as follows:
1) You can VISIT MANSA DEVI TEMPLE. WHILE RETURNING JOIN GANGA AARTI AT HAR KI PAURI IN THE EVENING AND LATER EXPLORE THE LOCAL MARKET THEN RETURN BACK TO HOTEL.

In the morning after breakfast proceed drive to Mussoorie. Check in to the hotel on arrival and get relaxed later you can visit kempty falls, company garden,gun hills,dhanaulti etc
In the evening drive back to hotel and visit mall road before dinner

In the morning after breakfast proceed drive to Delhi via Haridwar with the sweet memories of Uttarakhand