Ambergris Key Treasure Map: Assassin's Creed Black Flag Resynced

By maturemindedgamers | Jul 24, 2026

To subscribe to this RSS feed, copy and paste this URL into your RSS reader:

Looking for the buried treasure from the Ambergris Key map in Assassin's Creed IV: Black Flag? Jim from Mature-Minded Gamers shows you the exact coordinates at Mysteriosa (271, 178). In this guide, we navigate through a tropical storm, infiltrate enemy-guarded ruins, and find the buried chest located right next to the island's fountain. Finding this treasure is essential for ship combat enthusiasts, as it contains the 'Heavy Shot Strength Ultimate Plan' to maximize your broadside damage. We also walk away with a cool 3,000 Reals! Whether you are a completionist or just want the best ship upgrades, this step-by-step walkthrough will make your treasure hunting easy and efficient.

About Mature Minded Gamers

We’re a community of adult gamers (18+) who love exploring indie games, survival titles, MMORPGs, RPGs, and tycoon/management sims. Every weekday at 12pm EST we drop a new Lunch Break episode: a fun first look, review, or let’s play designed for gamers with busy lives.

Join the Community

👍 Subscribe for our daily Lunch Break content

💬 Discord: https://discord.gg/M4Gqbfy

⭐ Steam Curator: https://store.steampowered.com/curator/33014117-Mature-Minded-Gamers/

🌐 Website: http://www.maturemindedgamers.com

🌀 Bluesky: https://bsky.app/profile/maturemindedgamers.bsky.social

0:00 - Introduction & Ambergris Key Map Overview

0:35 - Sailing to Mysteriosa (271, 178)

1:33 - Arriving at the Ruins

2:19 - Stealth & Infiltrating the Island

3:58 - Navigating the Jungle to the Dig Site

6:45 - Freeing Captives along the way