Poia Lake Cave (Montana): Hey everyone! I am opening up 4 additional spots for an advanced day-trip to explore Poia Lake Cave in Glacier National Park. This cave is ~3.2km in total travel distance, it is wet, and requires some squeezing (a decent squeeze/belly crawl to enter the cave) and climbing. Dates: Leave Calgary Friday night (June 26) around 6:00pm, cave all day Saturday (June 27), and head back Sunday. We will sort out camping on the Friday and Sunday night at a later time. Some options: A) stay at a campground in Babb (wild camping across the border may not be an option as it is either in park or on reserve land). B) Camp CND side and drive out early Saturday morning and late Saturday night. C) Book the backcountry sites and do it as an overnight trip. There are lots of logistical variations that could be thrown together. Once I have confirmed group numbers, I can finalize this planning. The Cave Permit: Completely free! We will grab it Saturday morning at the Many Glacier Ranger Station. If we choose to backcountry camp, It is 14 or 17$ a night (park ranger was unclear). The Hike: This is a 20+ kilometer round-trip trek while carrying fairly heavy gear bags. The Cave: There is about 3.2 kilometers of cave to explore. Time Commitment: Expect a highly physically demanding day from start to finish. Reports put this trip at 10 to 12 hours car-to-car, but with a larger group, our total time will likely increase by a few hours. Please ensure you are prepared for a long, grueling day. ⚠️ CRUCIAL VEHICLE, PASS & SHUTTLE PLAN ⚠️ Entering the park is very expensive for Canadians due to a new $100 USD per-person international surcharge on top of the vehicle day pass. However, I have an America the Beautiful Non-Resident Pass, which completely covers 1 private vehicle and everyone riding inside it for free. If the other vehicle had a pass as well, this would be the simplest logistically. Alternatively, we could potentially park in Babb and shuttle (I can not confirm prior to though is this will be possible). Logistically, this plan checks out based on the latest 2026 park access policies I have found. However, things can always pop up or change unexpectedly when dealing with international travel. I am working with limited initial information, so I will be directly contacting the specific ranger station later this week to get more insights, however things can still happen. Gear & Cave Conditions: Wet & Cold: The cave is quite wet! Neoprene socks are highly recommended. I have a few extra pairs if anyone needs to borrow some. SRT & Ropes: Single Rope Technique (SRT) gear is not mandatory, and there will be a hand line in a section of the cave. There is a potential rappel at the end of the cave, so it is worth bringing your vertical kit just in case! General Requirements: Passport for the border, a low-profile drag bag for the tight entry squeeze, and clean caving gear (thoroughly washed and dry) to pass the park's bat safety screen (WNS). Backup Plans (Plan B & C): If park permits fall through or weather shifts, I will put together a few alternative plans. Likely in the Ferine area. This may require 4x4 access. Additional options can be explored. How to Sign Up: I have space for 4 more people. Please sign up on the ASS website portal. Please ONLY sign up if you are absolutely certain you want to do this. This is going to be logistically challenging to plan. Once you are signed up on the portal, I will drop you into our existing group chat to finalize the finer details!