I have the "Expanding - Purchase the Farm by the Beach" objective in my phone journal. I go to the beach (following the "Old Farm" road post that points up the hill that's by the roadblocked tunnel) where there's a bamboo forest and continue driving up the hill where there's a trail of small ground lamps on other side. But just as I cross the wooden bridge, I see an enclosure of small lamps on the ground and a deadend which is blocked by a thicket of bamboo/trees. I thought I'd have to chop them using the machete/Nata to get to the other side but even that option does not show up. On my map, the dropbox to that farm lies on the other side of this thicket.

Not sure if I'm looking in the wrong area. I'm also on Patch 4 of Sunnyside on PC playing with a XBox 360 controller. At this time, I've also already bought a farm that's by the bus station.