Lory State Park in Northern Colorado is a great place to take someone new to Colorado for lots of accessible hikes and different types of trails.
There are a few coves to hike to and there is also the venerable Arthurs Rock Trail.
If you are looking for a good spot to take photos, Lory State park has rocky hillsides, valley meadows, water features and tons of plant and wildlife.
Good for all seasons, Lory State Park is great for getting away from the town without having to travel to far.