When you gain access to a new secret of nature, choose one of the following.
You are at home soaring at dizzying heights and peering towards the horizon. You can familiarize yourself with a 5-mile radius area around you by spending a minute studying your surroundings while flying or at great heights. Once you familiarize yourself with an area in this way, you gain an expertise die on any Perception or Survival checks you make while outdoors in that area for the next 24 hours, and you cannot familiarize yourself with another area until you finish a long rest.
You are at home in the depths, able to control your breathing and attune to the subtle movements of the water. You gain a swimming speed equal to your Speed and you add your Wisdom modifier to the number of minutes you can hold your breath before suffocating. In addition, while fully submerged in water you gain blindsight out to a range of 10 feet.
You’ve grown accustomed to the echoing solitude of vast caverns. You always know the actual direction of any sound you hear regardless of any echoes. In addition, while you are in complete darkness and not deafened you gain blindsight out to a range of 15 feet.
Few choose to willingly live where the sun relentlessly burns overhead but you find tranquility amongst the sands. You are naturally acclimatized to hot weather and extremely high temperatures. In addition, while in a desert or similar arid environment you can spend 1 hour scouring the area for food and digging for water to generate 1 Supply. Once you use this feature, you cannot do so again until you finish a long rest.
You’ve grown to know the lands twisted by the fey, distorted by magical pollution, or places otherwise warped in unnatural ways. You may make Survival checks in place of Arcana checks regarding magical environments, foodstuffs, and creatures, and gain an expertise die on any checks made this way.
Forests and jungles are filled with natural medicines ripe for the picking. You gain an expertise die on checks made using an herbalism kit and checks made to locate herbal ingredients. In addition, whenever you obtain a medicinal or rare herb using an herbalism kit, you gain twice as many medicinals or rare herbs.
Bogs and swamps are unpleasant to most but are filled with natural beauty to you. Moving through swamps, bogs, or muddy difficult terrain costs you no extra movement and you cannot become naturally lost while traveling through marshlands. In addition, you ignore the effects of roughing it imposed by resting in wet or swampy environments.
No matter the brush you always know how to harvest nature’s bounty. You have advantage on checks made to locate or harvest edible flora in the wild and gain twice as many Supply as normal when doing so.
You gain a climbing speed equal to your Speed. You gain an expertise die on any Athletics checks made while climbing and you are also acclimated to high altitudes, including elevations above 20,000 feet. In addition, you ignore the effects of roughing it imposed by resting in rocky or uneven terrain.
You embrace the cold of snowbound tundra. You are naturally acclimatized to cold weather and extremely low temperatures, you ignore the disadvantage to Perception checks imposed by blizzards, and you automatically succeed on concentration checks imposed by blizzards. In addition, you ignore the effects of roughing it imposed by resting without warmth in environments of extreme cold.