U can get compass in archipelago 2 3th to the last island but what island do I get lifesavers?

go to the shop & choose 2nd last tab showing the idol coin...you can see that you can buy the lifesaver etc. needed to upgrade the boat there....you will need to collect the idol coins from the archipelago quests....keep going back to the islands to get more idol coins to buy the upgrades

I got mine doing archipelago 1 quests. I now have two. I only got one compass though and I am all the way through the first set of islands. I keep going back no luck yet.

As far as I can tell, it's one of the quests in your que, but you wont know until you complete the quest. One of my quests right now is to open a certain chest, but the quest says I have to get the key, which can be done by completing a quest. It doesn't say which one, and I have completed several. There are bugs though. For instance on tribe orders, I have completed 14, but never got the reward for completing quest "fill 10 orders" I just stopped doing it because its a waste of resources.

3 ruins (cave), 6 Mithril, 12 batteries

You have to wait for a while and the map sign will show up on one of the island in the first archipelago. Go to the island and pick up the treasure chest with map sign on it.

upgrade objects, far as I can tell randomly 'fall' from island obstacles. However, the coins you get from clearing those obstacles can be used to purchase them in the store, under the image of the coin. You must have at least 1000 to buy anything, and batteries are the most expensive.

how u get life saver to upgrade boat i havent upgrade boat at all