From the RuneScape Wiki, the wiki for all things RuneScape

Nature Teleport Tablet

Release date	12 August 2008 (Update)
Members only?	Yes
Quest item?	No
Tradeable?	No
Equipable?	No
Stacks?	Yes
High Alchemy	60 coins
Low Alchemy	40 coins
Destroy	Drop
Store price	42 Runecrafting Guild Tokens (Wizard Elriss)
Examine	A tablet containing a magic spell.
Weight	0 kg

The Nature altar teleport is a type of Magic teleport tablet which allows players to travel directly outside the Nature altar. It is purchasable by exchanging 42 tokens, earned through the minigame The Great Orb Project, with Wizard Elriss. It has been questioned by many players of The Great Orb Project if tokens to buy these teleports are worth it, as players can use the Abyss to access all runecrafting altars.