Abstract: A system and a speaker apparatus. The system may include a speaker apparatus. The speaker apparatus may include a speaker apparatus body and a removable base. The removable base may have a cavity formed within the removable base. The removable base may optionally have at least two side holes and a bottom hole. The at least two side holes and the bottom hole may allow for a flow of a water to flow into and out of the cavity.

Abstract: A system may include an inflatable towable vehicle. The inflatable towable vehicle may include a spinner apparatus attached to a bottom side of the inflatable towable vehicle. At least a portion of the spinner apparatus may be configured to be submerged when the inflatable towable vehicle is towed in water. The spinner apparatus may include: a base configured to abut the bottom side of the inflatable towable vehicle when the spinner apparatus is attached to the bottom side of the inflatable towable vehicle; a post extending away from the base; a cylindrical tube, wherein the post may extend through the cylindrical tube, wherein the cylindrical tube may be configured to rotate around the post; and a tow rope attachment member attached to and extending from the cylindrical tube. The inflatable towable vehicle may be configured to rotate as the inflatable towable vehicle is towed.