As mentioned before experience rates are extremely low at 10-20k per hour but gold that you can get from those runes makes it all worth it. You should be able to RuneScape gold create around 2500 runes per hour using 59 RuneCrafting that will produce around 350k gold.
Cosmic Altar is located in Zanaris not unlocked by Lost City quest completion . There is Agility shortcut at levels 44 and 66 which will make your journeys less difficult, however, if your don't possess the required levels you could use Fairy Rings to get around this location in a reasonable time.
This is an identical technique used to create Cosmic Runes. If you have completed the Lunar Diplomacy quest you can begin making Astral Runes at Altar south-east of the village on Lunar Isle. Begin by taking Runecrafting Pouch, Earth staff, Law essences and runes. When you're running to Altar be aware of Level 111 Combat Suqahs which could hit you pretty hard if you don't pray for melee. Once you've finished crafting runes , make use of the Moonclan transfer and go back to the bank and store the work you've made. This method will give you approximately 800k gold, and 30k exp after at level 82. You can then make double Astral Runes.
Another effective method to create runes is done through Abyss. If you've completed stage 1 of Enter The Abyss miniquest you have the ability to utilize it to create Nature Runes or if you haven't, you'll need to accomplish that to use this method. Begin by equipping amulet of splendor, taking the Rune bags and essential oils.
Go to the wilderness just north of Edgeville where you will be able to meet Mage of Zamorak through a conversation with this Dark Mage and teleporting to Abyss. Inside , you'll be being skulled, which means that if you die you'll lose everything. Use one of the tunnels to buy rs3 gold go from the outer ring to the inner ring. You will need to do something to unblock obstacles like mining rocks (which will require a mining level) or cutting trees which block the way so bring along a basic pickaxe or axe.
The Wall