Feywild

As an "echo" of the Prime Material plane, its geography was similar although not entirely identical to that of the Prime, but the natural landscape was markedly more dramatic and beautiful in the Feywild, with mountains standing straighter and sharper, rivers flowing clearer and faster, and flowers bloom brighter and more fragrantly. While most Prime locations and landmarks had analogues in the Feywild, sites of civilization in the Prime could be so unimportant in the Feywild as to be easily missed, while natural landmarks might be significantly more majestic or extreme. Navigating the Feywild was further complicated by the fact that distances did not always make sense. While two landmarks might be the same distance apart as in the Prime when travelling in one direction, they might be inexplicably further or closer on the return trip.

Fey Crossings

Fey crossings are places of mystery and beauty on the Material Plane that have a near-perfect mirror in the Feywild, creating a portal where the two planes touch. A traveler passes through a fey crossing by entering a clearing, wading into a pool, stepping into a circle of mushrooms, or crawling under the trunk of a tree. To the traveler, it seems like he or she has simply walked into the Feywild with a step. To an observer, the traveler is ther one moment and gone the next.   Like other portals betweem planes, most fey crossings open infrequently. A crossing might open only during a full moon, on the dawn of a particular day, or for someone carrying a ceretain type of item. A fey crossing can be closed permanently if the land on either side is dramatically altered - for example, if a castle is built over the clearing on the Material Plane.  

Optional Rules: Feywild Magic

Memory Loss

A creature that leaves the Feywild must make a DC 10 Wisdom saving throw. Fey creatures automatically succeed on the saving throw, as do any creatures, like elves, that have the Fey Ancestry trait. A creature that fails the saving throw remembers nothing from its time spent in the Feywild. On a successful save, the creature's memories remain intact but are a little hazy. Any spell that can end a curse can restore the creature's lost memories.  

Time Warp

While time seems to pass normally in the Feywild, characters might spend a day there and realize, upon leaving the plane, that less or more time has elapsed everywhere else in the multiverse. Whenever a creature or group of creatures leaves the Feywild after spending at least 1 day on theat plane, you can choose a time cvhanges that works best for your campaign, if any, or roll on the Feywild Time Warp table. A wish spell can be used to remove the effect on up to ten creatures. Some powerful fey have the ability to grant such wishes and maight do so in the beneficiaries agree to subject themselves to a geas spell and complete a quest after the wish spell is cast.  

The inhabitants of the Feywild varied in temperament from kind to malicious, but almost all had a mischievous side to them and few stopped to consider the needs or worries of visitors to their home. While many of those living in Faerie were untamed, large numbers also congregated according to race or by political allegiance. Just as the geography was reminiscent of the Prime's, some of its inhabitants existed as fey "echoes" of Prime creatures.