Beach sand

Beach sand is a currency that players will find during the Build A Beach seasonal event. They can be gathered every 3 minutes when gaining experience through skilling and killing monsters, as well as by completing daily challenges and Treasure Trails. Mining and Construction provide 20% more sand than other skills. They can then be handed in at Reyna in Lumbridge Crater to progress the event bar for the following rewards:

Beach sand can also be converted directly into mystery boxes (without progressing the event) at a cost of 375 per event mystery box or 750 per big event mystery box.

Beach sand can be stored in the currency pouch to save bank and inventory space. When handing them in to Reyna, the collected sand is taken directly from there instead of from the inventory.