It took some experimentation, but I finally figured out how to visit another island's dream address.
First off, I'm impressed by your attention to detail. I have no idea how you did that design in the sand, and it never would have occurred to me to drop seaweed on my beaches so that it looked like the seaweed washed ashore. Everyone seems to have yards and items in their yards that reflects their interests, and your paved stone pathways are beautiful.
There's one section of raised land that feels a bit too busy to me. I think you're trying to go for a magical abandoned area, but the piles of leaves don't feel like they match with the paved areas to me. All of the paved areas are clear except for a single pile of leaves each while the unpaved areas are overgrown with weeds and moss. I suggest either getting rid of the paved areas or adding a lot more piles of leaves. I'm not sure that the sword in the map matches with the rest either. I think the sword would work better if there were no paved areas.
It might be a good idea to add more ways to travel to the different sections of your island too. I'm pretty sure I missed some parts because I couldn't figure out how to get over there. Though that might be intentional if you're trying to convey the sensation of someone getting lost on your island.