Just returned from a 3-night quick trip to RMNP and thought I'd write up a quick trip report centered around logistics. We just decided to go about 3 weeks ago, which reduced our options for lodging and advanced time tickets to be able to enter the park. We found a quirky little cabin community to stay at which bordered the Big Thompson River and made my fly-fishing-loving husband very happy.
Day 1: Flew into Denver, got a rental car (a giant truck, actually, which ironically was the cheapest option. However, it was $105 to fill it up with gas, ha!). Drove to Estes Park (1.5 hours). Had an alarm on my phone for 6:55 pm to log on at 7pm to get a time ticket to be able to enter RMNP. The time tickets release either one month in advance on the first of the month (e.g. time tickets for September released on August 1). They also release some tickets the day before at 7pm mountain time. You do need a recreation.gov login and password and it costs $2. I logged on promptly at 7pm and was able to snag my desired 5-7am entry time to the Bear Lake Corridor, no problem. Other people in the lobby who were doing the same thing did encounter some website crashing, so be patient. I logged on the next night at 7:22 out of curiosity and all tickets were sold out; the moral of that story is, if you want next day tickets, don't fool around! There are two types of time tickets - one for the Bear Lake corridor, which requires a timed entry 5am to 6pm, or the rest of the park, which requires timed entry from 9am to 2pm.
Day 2 (Thursday): Bear Lake Corridor. I had read online that the Bear Lake parking lot fills up very quickly. I hate riding shuttles so getting a spot was a priority for us. We left our cabin at 6am and got to the park entrance at 6:15. There was about a 10-minute wait to get into the park via the Beaver Meadows entrance. We drove the 9 miles in the dark/pre-sunrise. To my dismay, about halfway there, we came upon a lighted sign that said the Bear Lake parking lot was full and that we should use the park and ride shuttle. My husband, however, was like, "Ffffftttt, keep driving, maybe a spot will magically open up." So we continued on to the lot and imagine my surprise (and annoyance) that the lot was only half full! We parked there no problem, and we kept witnessing people arriving on the shuttle and also looking annoyed that the sign "lied." So if you're a shuttle-hater like me, definitely check the lot first, even if it says it's full. We hiked to Nymph Lake and Dream Lake, and it was a gorgeous hike with yellow aspens, blue jays, scenic overlooks, etc. It wasn't too crowded since we started right at sunrise, but as we were coming back down it was getting VERY busy so go early if you want to avoid hiking in a big line of people. We later hiked around Sprague Lake which wasn't crowded at all and also the Moraine Meadows area, also not crowded.
Day 3 (Friday). Did not have a time ticket this morning so had to get to the park before 9am. Left at 8am, used the Fall River entrance. Also waited about 10 minutes to get in here. We made a quick stop at the Alluvial Fan (very cool) before we took the one-way, historic dirt road - the Old Fall River Road. I highly recommend doing this instead of using the Trail Ridge Road to reach the top of RMNP. You don't need a 4WD vehicle although parts of the road were quite rutty. We did great in our giant truck, ha! The visitors' center at the top was MOBBED so we couldn't find a parking space, so be careful about assuming you can eat here (basically the only park restaurant) - bring food/water with you. (The Bear Lake side has NO food services.) We drove down Trail Ridge Road to go home and it looks totally different than Old Fall River Road, so we got two very different experiences. We hiked the Tundra trail on the way (awesome).
Definitely glad we had 2 days in the park, as the two sides we did looked/felt totally different from each other. It was a good quick trip!