Splash Aquatics (SLurl) has updated the prize for their coin hunt so if you missed the L$250-value Piranha pack, sorry. But you are in time to try for the L$900-value river creation kit. Some of the bits are shown here. With full mod/copy perms you can shape these elements to make your land a natural wonder inSL. An example is shown on site and soon I'll have my custom river all set for you to explore on my newly acquired land adjacent to Splash (I love the place so much that when land was available, I snapped it up).