The incredible scenery and relatively low avalanche exposure make this is an excellent first time snowshoeing trip. No doubt you will understand why Rocky Mountain National Park was made a national park.
This trip has you camping in Moraine Park (car camp/ Reservations HERE) then head out onto the trail to Emerald Lake from Bear Lake Trailhead. You will cross three frozen lakes (are the fish shivering?) in a high alpine environment. Round trip distance is a delightful 3 miles and route finding is typically straightforward as this is a popular route. Camp in Moraine Park for a second bag night.