The Sims 4 Hidden Areas Unlock Guide [PC]
In The Sims 4 there are secret areas that can be unlocked with a particular process, here's how.
How do you unlock the Sylvan Glade location
Go to Crick Cabana, explore the area near the house to find the tree that says "Sylvan Tree". Click on it and select the "look" option, do this repeatedly until a door appears on the tree. Enter, then select the options in this sequence: follow the sound, follow downstream, enter the fog. You will now be able to access this secret location, Sylvan Glade. Also watch the video below to see how
How to unlock Forgotten Grotto
Go to Desert Bloom Park in Oasis Springs, but without it make sure you have read at least three books to bring the "Handiness" skill level to 10. Now you can go to the wooden door of the abandoned mine, which is at the back of the park. With the "Handiness" skill at 10 you will be able to open the door, so go inside to explore the mine. As you continue to interact, answer the questions like this: take the wider path, climb the ladder and step onto the legde, then you will be able to access this secret location, Forgotten Grotto. Here is a video showing the process