|Notable locations||Western hemisphere
Valley of the Lost
The Whispering Woods
Kingdom of Brightmoon
Kingdom of Snows
The Crystal Castle
Etheria was founded by a group of beings known only as The First Ones. Their living spirits dwell in the Cavern of Fire, located in an underground kingdom, beneath The Crystal Castle.
Etheria, the sister planet of Eternia, is ruled by Hordak, a tyrannical leader and member of the Evil Horde. Like Eternia, Etheria appears to be a relatively small planet, as characters have been shown to traverse far-flung locations in short amounts of time. Also, nearly all forms of Etheria's creatures (including its humans and horses) have demonstrated the ability to jump vast distances in relation to their body size, and/or survive falls from significant heights with little harm; both indicating the lighter gravity that would be typical of a small planet.
Major locations 
The Crystal Castle 
The Castle is located at the top of Skydancer Mountain, and is also home to Light Hope. This is She-Ra's retreat, where she seeks advice whenever the Rebellion is in danger.
The Fright Zone 
The headquarters of the segment of Evil Horde on Etheria, home to their factory-like base. A large cloud of brownish smog covers the skies above.
Beast Island 
A dangerous jungle island, populated by giant aggressive creatures, and home to the Horde's main prison.
The Whispering Woods 
Talon Mountain 
A large catacombed mountain that serves as home and base territory to the Harpy race led by Hunga the Harpy.
Home to Castaspella and has a forest named Greenvale ruled by King Gruff.
A kingdom ruled by Queen Angella, mother of Princess Glimmer. Angella possesses extremely powerful magic, whose potency is more than sufficient to prevent the Horde from attacking her kingdom. Her magic is however tied to the powers of Castle Brightmoon and its Moonstone gem, which themselves are derived from the light of Etheria's triple moons. When the moons are darkened during lunar eclipses, her magic fades to almost nothing, leaving her kingdom vulnerable to attack.
Brightmoon was the last Etherian kingdom to fall to the Horde's initial invasion, and the first (and only verified) one to regain its freedom. It is often utilized as a staging base for rebel activities.
A massive region of stone and mountains ruled by Ahgo, sorcerer king of the Trolls.
|This section requires expansion. (November 2012)|
- Etherians -
- Bee-People -
- Harpies -
- Mermaids -
- Trolls -
- Twiggets - The Twiggets are the diminutive humanoid race who populate the Whispering Woods. They are easily identified by their white hair and purple skin.
- "The Best of She-Ra - Princess of Power". DVD Talk. Retrieved 2010-01-17.
- "She-Ra’s Second Due in Sept.". Animation Magazine. Retrieved 2010-03-07.