The Mermaid Pendant in "Stardew Valley" is a very important special prop in the game. To obtain the Mermaid Pendant, you need to repair the bridge leading to the east side of the beach first, using 300 pieces of wood. After completing the repair, you need to wait for a rainy day. On any rainy day in spring, summer or fall.
How to get the Mermaid Pendant in Stardew Valley
In the game, there is only one way to obtain the Mermaid Pendant: you need to repair the bridge leading to the east side of the beach first, using 300 pieces of wood. After completing the repair, you need to wait for a rainy day.
On any rainy day in the spring, summer, or fall, the Old Mariner will appear at the tree line on the now accessible north side of the island. He will appear from 6am to 7pm, selling mermaid pendants for 5000 gold coins. He may also appear in winter, but you need to use a rain totem to force a rainy day, provided there are no night market activities.
The old sailor will still appear even if you are married or have a roommate, but he will no longer sell you the Mermaid Pendant unless you divorce your current spouse. If you're engaged to your future spouse but not yet married, you can go back to Old Mariner and buy another mermaid pendant.
Once you obtain the Mermaid Pendant, you can give it to any friend with 10 hearts, but if you give it away while already married, they will blame you for your actions.