bakkart, the cakes are a 1x1 item that gives 48 reputation and 1 cup of cocoa, and can be stored. The cocoa is only given when a cake is placed the 1st time, so no store and replace exploits for infinite cocoa.
The Shinning Stone map is currently a work in progress that is being updated as people use more pathfinders. I think a rough guess of 3-5 weeks for completion depending on luck.
Link to google sheet doc with the map: https://ancillary-proxy.atarimworker.io?url=https%3A%2F%2Fdocs.google.com%2Fspreadsheets%2Fd%2F1IYEmTVkrdTjH-jVWLEMr-D3LKOppxtVAss92Z1sOUco%2Fedit%3Fgid%3D0%23gid%3D0
@archerbob, the event island is the one with the waterfall next to the compass. If the quest doesn't tick off, I would recommend sending the developers a bug report. About looping sound issue/crash, try playing without the sound on and see if that helps, if not send a bug report.
@ LynneTan, check you the map on either the wiki or the goggledocs (link at the wiki and best comments), you may have missed one or more. Download a copy of the map, then mark every rabbit and tile you've opened to make sure.
I thought I had got all of rabbits, but didn't receive the sparklers either, until I marked down where I've been and found I had missed 1.
@nilnilil, the garlic reward from mansion can be planted and harvested after 12 hours, and used in a recipe for 6 energy and 20 food. Recipe is 10 carrots, 2 salt, and 5 garlic, so energy gain is only worth it when using with tractor.
@ Palzmann, you need to have finished the 'Better Machete' quest after you unlock Haraiki Island to get them. They're not needed as only a tall palm is blocked and the palms are only useful for 1 quest only.
@nilnilil, you can get more scrap metal, by clicking on the 'Plants' icon next to your exp/level, then going to page 5 in the 'Resource' section, and buying a 'Heap of Metal, they cost 6k. Piles of garbage are on page 3 and 4.