You could go about it in a more subtle way too. Like a good while earlier having a traumatized NPC tell them about how X uses certain types of plants or something to disguise traps. Then when they get to the area just tell them about the flora there and see if they remembered it. If they forgot, then getting surprise trapped is not unfair imo.
You could go about it in a more subtle way too. Like a good while earlier having a traumatized NPC tell them about how X uses certain types of plants or something to disguise traps. Then when they get to the area just tell them about the flora there and see if they remembered it. If they forgot, then getting surprise trapped is not unfair imo.