It was released on August 2, 2006, and was their first single to be released as a CD single and CD+DVD single. "Splash Gold -Natsu no Kiseki-" is a mid-tempo pop song with Okinawan folk influences.
The band's initial release was on August 2, 2006, as their first single to be distributed in both CD and CD+DVD formats. The song "Splash Gold -Natsu no Kiseki-" is a moderate-paced pop track that incorporates elements of Okinawan folk music.