You're probably going to be outdoors a lot, and you're going to need somewhere to sit :)
There are a few different styles of chairs: Director's chair: These chairs don't have much back support, but they're incredibly easy to setup, and they store well if you have an area for flat items. These are probably better if you care about posture too Zero gravity lounge: This type of chair is built to be the most comfortable, akin to a recliner, but at a cost of taking up more space and being a little pricier. Compact: These are great if you don't have a lot of space. They're popular with backpackers because they're lightweight and break down to a small size. The drawback is they take a little longer to setup and break down. Traditional: This is your standard camping chair. Budget-friendly and fairly compact
A side table for your chair can be nice if you like to keep things like snacks, a book, etc... within arm's reach
You obviously don't want your chair to break on you :)