Kayaking in the Bioluminescent Bay, Vieques, Puerto Rico (shots taken at ISO 409,600 with post-processing to reduce noises)
<a href="//commons.wikimedia.org/wiki/User:Z22" title="User:Z22">Z22</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>