It is what you'll need a weapon. When you cut cactus growing close to RuneScape gold pyramids, you can find water to fill the water bottles that are empty. With this method, the sole risk to your character's life is the memory.
Before you start this method be sure you are equipped with all of the weight-reducing equipment that you have (like the Graceful Outfit) - you must be as light as is possible (less than 10kg of equipment is enough). Now that you are properly outfitted, head to Pollnivneach by taking the Magic Carpet in Shantay Pass.
Once you have arrived to the village begin heading south until you reach The Agility Pyramid. There you will find NPC Simon Templeton. Ask him questions about the Pyramid Top and after the conversation , go towards the Pyramid Course. If your Agility is greater than 51 you shouldn't have any issues with obstacles.
If you've managed make it to the top of the Pyramid then take the object lying there and head back to the NPC whom you previously had a conversation with. He will now pay you 10k gold each Pyramid Top that you bring to him. Repeat this process for the duration you wish.
To begin, you'll have to go to the Great Kourend which can be accessed via boat in Port Sarim. Once you arrive at the port, contact Veos who is in the to the south of the inn. Ask him to take you to the Port Piscarilius. From there, head towards the west until you come across Kourend Castle. Just outside the castle gates is a large oval obelisk. Inspect it to cheap OSRS gold get into the cave.