Can I get back to 1, 2, and 3, island?

Question

Hi, I accidentally forgot to get Moltres on the 1 2 and 3 islands. I know, rookie mistake, and Im sorry, but I looked to fly back there and don't see it on the map. I tried to Surf there, but don't see a route. Can I actually get back to 1 2 and 3 island? If so, how? Thank you!

Comments

What game?

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FR/LG, Sevii Islands don't exist in any other game.

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Have you tried going back to the ferry?

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Oh sorry I got things mixed up. If you already left just go to Vermilion city. It will take you to the first three islands.

Answer 1

In order to go back to the Sevii Islands (specifically 1, 2, and 3 in your case), just go to Vermillion City and talk to the Sailor where you got On the S.S Anne. He will ask you where you want to go and you just select the Island you want.
Source: https://gamefaqs.gamespot.com/gba/918915-pokemon-firered-version/answers/434591-how-to-get-back-to-sevii-islands