If you are trying to wrap up your 23/23 checklist for Legend Island and get that official game completion badge, you might have run into a bit of a headache looking for the Radio Towers. There is some bad information floating around in early online guides that incorrectly places this landmark way up north in the Ohtani region. Don't waste your time driving around up there; the towers are firmly planted on Legend Island itself, and tracking them down is actually pretty straightforward once you know where to look.
Here is exactly how to find them, clear the checklist, and how to get onto the island even if you haven't technically unlocked it yet.
How to Find and Register the Radio Towers
The Radio Towers are a major point of interest located right near the middle of Legend Island, sitting along a prominent dirt road.

• Check Your Map: Open up your world map and look right at the center of Legend Island. The towers are located almost dead center in the middle of the island's layout.
• Scan the Skyline: As you get close, look up. You are looking for a cluster of massive, towering red-and-white structures. They stand out easily and are located right next to a nearby Horizon Festival site.
• Drive the Route: Get your car onto the main dirt road that cuts through this central zone.
• Trigger the Discovery: All you have to do is drive directly down this dirt road right past the towers. As you pass them, the game will automatically pop up a notification and register the "Radio Towers" point of interest to your discovery journal.

How to Access Legend Island
If you are looking at your map and realizing you can't even see Legend Island yet, don't worry. You can get out there using two completely different methods depending on how you like to play.
Method 1: The Legit Progression Route (Gold Wristband)
If you want to earn your way there naturally through the game's campaign, you will need to work your way up to the final festival tier.

1. Complete the standard Horizon Festival pathway events scattered across the main map.
2. Work your way through the festival tiers in order: Yellow, Green, Blue, Pink, Orange, and Purple.
3. Keep banking progress until you finally unlock the seventh and final tier: the Gold Wristband.
4. Complete the final Gold Wristband showcase event, and the game will formally reward you with permanent access to Legend Island.

Method 2: The Event Lab Shortcut (Fast Tracking)
If you don't feel like grinding through six tiers of festival events just to tick off a collectible, you can use a clever community workaround to teleport straight there.

1. Open your pause menu and head over to the Creative Hub tab.
2. Select Event Lab and then go to Play Events.
3. Hit the search tool at the bottom of the screen and search for custom maps tagged with the phrase "Legend Island".
4. Launch one of the custom blueprint events. The moment it loads, it will instantly blueprint-teleport your car right onto the island. From there, you can just drive over to the center of the map and unlock the Radio Towers point of interest without ever needing to unlock the Gold Wristband.