LighterPack lists:

Summer overnight fastpacking, Queensland: https://lighterpack.com/r/20dykn

Winter overnight fastpacking, Queensland: https://lighterpack.com/r/sh62

Winter through-hike South Australia: https://lighterpack.com/r/8nknls

Winter through-hike Queensland: https://lighterpack.com/r/fp9xd5

I live in tropical Queensland, Australia. The summer temps here are usually 22-35 degrees Celsius, humidity 75-95%, and I run throughout the day. It's often 30 degrees by 1000hrs.

I am an ultramarathoner, and run as much of the trails as possible with a frameless pack. What I do here is head over to an offshore island near me and do two days of trail running with the pack, which for me is distance and weight training combined with the fun of camping and swimming in the sea! I will run around 45-55kms the first day, and usually a further 35-45kms on the second.

For context I am a 169cm 50kg female on a low carb, often ketogenic diet. Due to being lightweight myself and my need to run I have sought lightest possible gear I can reasonably afford, but have made concessions for some luxuries, such as my seat and Ti flask.

My biggest issue is heat and water, as on these islands there is simply no fresh water source available other than returning to the resort area to purchase bottled water. I take over all my water for the first day and night, and use the 2L Platypus bottle to make a water drop to pick up later in the day. I leave this at a trail junction leading to my intended campsite, so that I only have to carry it 1km in the morning when heavy with my full load of water, and so that if my plans change during the day it is easy to retrieve. Once I pick it up I have to carry it 3km to my campsite, but by then my daily water allowance is nearly through so it's not making me super-heavy and I can refill my drinking bottles if needed.The islands are small and therefore not through-hike situations, and I typically run the entirety of the web of trails each day, covering around 30-50kms/day depending on how much doubling-back and exploring / bush-bashing I do. I hide water drops in the bush to return to later on as needed, so usually start these trips with very high pack weight in extra water. The list starts out with 3L of water on board, but I'll often start with around 5L at least - so 5kg of weight just in water - some of which I'll drop at strategic points on the island for afternoon refills.

The list includes actual weighed-by-me weights, including food plan, so you can assume I'll simply multiply food as listed for additional days on multi-night trips. My base weight comes in under 10lbs and I can get away without taking much food on top of that; I am well fat-adapted and can save on food weight by running at a calorie deficit without performance impact. Despite the heat I take a quilt; although the nights are warm I usually camp on beaches and it gets quite cool at around 0300hrs onwards, so I found a thermal bag liner alone insufficient. I sleep in the UL thermals even in summer due to getting cool in the early morning and also because I simply can't stand sticky skin against the pad or myself when I can't have a good shower with soap!

The Snowpeak double-wall coffee cup is a bit of a luxury when I could just use the pot, for a hotter cuppa and greater convenience: in the morning I can drink coffee and keep stove burning to heat up my porridge at the same time; in the evening I sup miso soup in my mug whilst my dinner rehydrates in the pot. The multifuel stove was a purchase I agonised over due to the big weight increase over just using tablets. I used my 18g UST microstove solid fuel tablet burner on both try-out trips and although it did work I found it awkward and kind of clumsy, especially trying to cook on windy island beaches. Hella UL, but yeh just clumsy, and left me with a pitch-black pot covered in soot. Also - sooty lips. Lols. So although the stove and alcohol adds a good 180g or so to my pack over just the 500ml pot and tablet burner, the ease of use will be worth it for sure, especially in the wind.