Abstract: A splash block is disclosed of the type placed beneath downspouts to disperse and direct rain water away from buildings. The novel feature of the invention relates to means for coupling two or more splash blocks together to connect the splash blocks, such that the effective length of the splash block can be extended to carry water under force of gravity any desired distance from the building foundation. The splash blocks can be coupled in a straight configuration to extend their length, or they can be coupled in an angled configuration to direct water around obstacles, such as shrubbery.