Getting to Iron Island in Pokémon Brilliant Diamond and Shining Pearl is straightforward, but catching the legendary titans Regirock, Regice, and Registeel requires a separate chain of locations and specific puzzle solutions. You need the National Pokédex, access to Ramanas Park, and a solid supply of Ultra Balls or Dusk Balls before you begin your hunt for these classic Hoenn legends.
Iron Island itself is located off the western coast of Canalave City. You don't need to visit it immediately to catch the Regis, but exploring the island gives you essential items like Metal Coat and lets you team up with Riley to level your party. This guide covers how to reach Iron Island, unlock Ramanas Park, and solve the puzzles required to capture Regirock, Regice, and Registeel.
Reaching Iron Island and Unlocking the Essentials
Before hunting legendary Pokémon, you must gain access to Canalave City and secure the ability to travel across the water. HM03 (Surf) and HM04 (Strength) are mandatory for navigating both Iron Island and the underground areas where the titans rest.
Speak to the sailor standing near the dock in the northwestern corner of Canalave City after you have earned the Mine Badge from Byron. He will offer to take you to Iron Island on his boat. Once you arrive, you'll enter a two-floor cave system filled with mine carts, tough trainers, and valuable items.
Teaming up with Riley inside the cave is entirely optional for the Regi questline, but it makes navigating the tunnels much easier. Riley heals your Pokémon after every battle, saving you time and resources. Make sure you grab the Metal Coat from the deepest part of the cave before you leave, as you might want it for evolution later.
Unlocking Ramanas Park and the Slate System
Regirock, Regice, and Registeel do not wander around the Sinnoh overworld. Instead, you encounter them inside Ramanas Park, a post-game facility that replaces Pal Park from the original 2006 Nintendo DS releases.
To unlock Ramanas Park, you must complete two major requirements:
- Obtain the National Pokédex by seeing all 150 Pokémon in the Sinnoh Pokédex and speaking to Professor Rowan in Sandgem Town.
- Defeat or catch the Elite Four and the Champion to enter the post-game hall of fame.
Once these conditions are met, head south from Route 221 to reach Ramanas Park. Inside, a counter clerk sells slates in exchange for Mysterious Shards. You find Mysterious Shards by digging in the Grand Underground using the mining minigame. Small Shards trade at a rate of three for one Large Shard, and you need specific slates to spawn each of the three legendary golems.
Catching Regirock: The Rock Peak Slate
Regirock requires the Rock Peak Slate. Purchase this slate from the Ramanas Park reception counter using your hard-earned Mysterious Shards.
Head into the Discovery Room inside Ramanas Park and place the Rock Peak Slate into the pedestal. A door opens, allowing you into the inner chamber where Regirock waits at level 70.
Regirock Encounter Strategy
- Preparation: Regirock boasts massive physical defense. Bring special attackers like Alakazam, Gengar, or Palkia to whittle down its health without triggering dangerous counters.
- Status Conditions: Sleep or Paralysis dramatically increases your catch rate. Use Hypnosis or Thunder Wave early in the battle.
- Ball Choice: Timer Balls work wonders if the battle drags past ten turns. Dusk Balls also offer high catch rates if you prefer a dark aesthetic.
Catching Regice: The Iceberg Slate
Once you capture Regirock, the counter clerk stocks the Iceberg Slate. Buy it with Mysterious Shards and take it to the corresponding room in Ramanas Park.
Insert the Iceberg Slate into the pedestal to trigger the encounter with Regice, also resting at level 70.
Regice Encounter Strategy
- Preparation: Regice specializes in special defense, making physical fighters your best option here. Bring Pokémon equipped with physical moves like Earthquake, Close Combat, or Iron Head.
- Type Resistance: Regice relies heavily on ice-type attacks. Steel and fire types resist its offensive pressure and keep your team healthy.
- HP Management: Use False Swipe to drop Regice to 1 HP safely. Watch out for its high catch resistance; you might need upwards of twenty Ultra Balls.
Catching Registeel: The Iron Slate
After catching Regice, return to the reception desk to purchase the final titan-specific item: the Iron Slate.
Head to the designated room, place the Iron Slate in the pedestal, and step forward to battle Registeel at level 70.
Registeel Encounter Strategy
- Preparation: Registeel possesses balanced defenses and a terrifying move set including Flash Cannon and Iron Defense. Bring fire, fighting, or ground-type moves to pierce its metallic shell.
- Accuracy and Healing: Bring plenty of Max Potions and Full Restores. Registeel takes a long time to wear down, and a careless critical hit can knock out your catcher.
- Saving Before Battle: Always save your game directly outside the cave door before interacting with the pedestal. If you accidentally defeat Registeel, you can reload your save and try again.
Frequently Asked Questions
Can I catch Regigigas after catching the three golems?
Yes. Once you have captured Regirock, Regice, and Registeel, add all three to your active party. Travel to Snowpoint Temple and descend to the lowest floor where the statue of Regigigas rests. The statue will animate and challenge you to a level 70 battle.
Where is the fastest place to find Mysterious Shards?
The Grand Underground is the only place to find Mysterious Shards. Dig near the walls in the larger cave networks. Small shards appear more frequently than large shards, but you can trade up with the trader NPC in the underground tunnels if you find an abundance of small ones.
Do I need to visit Iron Island before entering Ramanas Park?
No. Iron Island is entirely optional for the Ramanas Park legendary encounters, though visiting it gives you useful items, experience points, and a break from the main progression path.
What level are the legendary golems in BDSP?
Regirock, Regice, and Registeel all spawn at level 70. Ensure your active team is at least level 65 or higher to avoid getting swept by their high-damage output.
