We mentioned the warped bats, now we will be killing warped tortoise and collect their shells to make more RS gold.
Collecting tortoise shells and make more Rs gold
The warped tortoise can be found in the Poison Waste Slayer Dungeon. In order to access the dungeon, you need to complete the Path of Glouphrie quest. You can reach there by using the spirit tree and mountain east of the Poison Waste. The tortoise shells can be used to make War tortoise pouch for summoning which is highly valuable. Due to this you can make more RS gold when sold in the Grand Exchange.
When you arrived in the Posion Waste Slayer Dungeon, find a good spot to kill warped tortoise. They only have 5200 health points which can be killed in just a few seconds as long as you have good powerful weapons or magic skill. Once you collected enough tortoise shells, start selling them in the Grand Exchange for Rs gold.