Downtown area has free parking and is very walkable. Explore coffee shops, local breweries and restaurants. Visit the Loveland visitor center link for more ideas and recommendations.
Nice little hike, close to town with great views and photo ops.
Nestled at the base of Rocky Mountain National Park, Estes Park is a short 30-45 minute drive up the Big Thompson Canyon. If you have time, don't miss this. You will encounter spectacular views, see wildlife (Rocky Mountain Elk) on main street... and be sure to stop by the famous Stanley Hotel. Visit the link for more details.