My sisters and I essentially backpacked for 5 weeks in Spain last summer. We invested in some pretty sturdy backpacks, and they served us well (whether on our backs, or as seats!)
Before we left, we really stocked up on beef jerky. I know it sounds weird, but it's a source of protein, it's filling yet it doesn't take up hardly any room in your backpack.
I only wore 3 outfits the entire time I was there. And the night before I left, I threw them out!
Bring at least 2 pair of quality tennis shoes too.
That's all I can think of for now...
Pack as little as you can. You'll soon pick up whatever you need locally.
I'm backpacking around Mexico in July to August. Any advice on the best backpack to get and what essential things I need to take would be much appreciated. Cheers for ya time, Tee.
Being Prior Service Army, I found that the most comfortable Shoulder Strap BackPack wasn't nearly as comfortable as a rucksack. A ruck sack is a Load Bearing Vest it puts the weight(if fastened correctly) on your hips and not your shoulders. If you plan on being on your feet all day with more than 20Lbs of gear get a LBV. It helps with weight distribution and simutaneously your posture. If you are light on your feet with just a change of clothes and a map the ruck sack might be too much. Good Luck on the Hike!