I have seen a few people wonder and ask what they should do once they hit the level cap of 80 so here’s some ideas.
1 – PvP and WvW
If you are max level don’t get bored and quit or do nothing, use your skills to win some bonuses for everyone or to stomp others in PvP
2 – Exploration
By the time you reach level 80 you will have a sizeable chunk of the world explored, why not explore the rest? There is tons of detail in Gw2 that are begging to be explored, like the troupe of dancing pygmy moas!
3 – Legendary.
Forge a legendary weapon! Its too long to go over it here but theres another thread for this amazing accomplishment. https://forum-en.gw2archive.eu/forum/game/players/Legendary-Weapons-Questions/first#post24398
4 Jumpy!
Why not explore some jumping puzzles? There are tons of them, even in cities that are well hidden and fun to explore. The free loot is also nice. Did you know there are 3 hidden jumping puzzles in lions arch?
5 Achieve greater things
Why not try completing some achievements and feats? You can even get titles for some such as reviving a lot of people!