If you haven't tried sea forts, try them! They are really easy to defeat, and you can honestly solo it. Its the type of thing where you don't need to invest much time, but still come out with some gold!
sea forts used to be nice before season 9. it was great to show up with a storage crate and a reaper flag, pick up insane amounts of supplies and get reaper 5 within 20 minutes of starting the session, and then go hunting. but now, you can just throw up the same reaper flag, buy supplies from the shipwright, and use the hourglass. i guess it's nice if you're low on gold, but most players have millions atp
Ashen lords can be completed in 2 minutes on a duo sloop with minimal effort; Search shipwrecks for bone callers, you’ll need 4, 2 per person, and 2 tridents, start the fight by throwing out 1 bone caller each, and back up your skeletons with tridents; for some reason, skeletons dont take flame damage from the flame breath (probably an unintended exclusion so the ashen lord doesnt kill its own summoned skeletons). Continue firing tridents till they wear out, around the end of the second phase, and reinforce your skeletons, after that, continue fighting with your skeletons till they kill the boss! Skeleton Army W ☠️
ashen lords can be completed solo sloop with minimal effort zero preparation dive to ashen lord park with cannon facing boss start blasting the boss with cannonballs less than 2 minutes later youre done; congratulations you just saved yourself from potentially spending like 30 plus minutes looking for 4 bone callers for no reason whatsoever and also didnt have to dive down to a treasury to get a reliable source of tridents
sea forts are bad for everything else but supps you can get about 7 pineapples 30-40 mangoes and around 15 peaces of meat 80 wood 150 cannons depending what fort it is
I am not sure Sea Forts are considered World events. They can be completed at any time even while actual World Events are active. It's an emergent event.