Fortnite Visit Ghost and Shadow Ruins Challenge Explained

Visiting the Ghost and Shadow Ruins in Fortnite will get you a nice chunk of 24000 XP, giving you a chance to get in as much XP in before the season ends on June 7.
Fortnite: Visit Ghost and Shadow Ruins
The Ghost Ruin and Shadow Ruins are located at two opposite ends, so be prepared to potentially play more than one game to get this challenge done.
Firstly, The Ghost Ruins are located at the northwestern corner of the map. Make your way over to the Shark POI from Season 2 and you will see The Ghost Ruins.
For The Shadow Ruins, make your way to the opposite end of the map. Follow the coastline south down from Dirty Docks, The Shadow Ruins is located down that coastline where a Shadow insignia can be seen.
[THREAD] #Fortnite v12.10 Map Changes ??
— FNAssist - News & Leaks (@FN_Assist) March 4, 2020
• The Grotto has now officially turned to SHADOW (This is currently unknown if this is a real result of players' choice for Brutus)
Shadow Henchmen and Shadow Brutus, plus Shadow markings and a giant skull can now be found in the lair. pic.twitter.com/CGtA6GXGkU
Enjoy the dump of 24,000 XP to get to your goal before the end of the season!