do you mean the summery farmland? It should be there after starting certain task, or day 20.
No, i mean the actual farm where yo talk to the farmer, arthur. I can go to the farmland and explore them, and fight the sharks and all that, but i cant go to the actual farm where i have to talk to arthur. In my old save where im up to date is there but in the new game it didnt appear. Im in day 27, i completed the task to kill 3 sharks and even followed the thief for the first time (because i remembered at what time he appeared). And when i talk to jog about the plum thief he says i should talk to the farmer so i think i should be able to go. I also explored a lot in the farmlands thinking i may have to discover the place like others, but or i have the worst luck ever or that isnt it, because i spend days in game spamming the explore button and nothing.
I dont remember if i did something special in the original save to be able to go, it was a long time ago and a lot of games in between.