by Robert Kuzel
Rock fish, no flash

---

by Kayla Ferguson
This photo was taken while diving off the Pacific Cost of Costa Rica. Taken with no light, only a red filter on a GoPro HERO4.

---

by Kayla Ferguson
Octopus captured off the Pacific Coast of Costa Rica, seconds before he disappeared into hiding under the rocks. Taken with no light, only a red filter on a GoPro HERO4.

---

by Kayla Ferguson
A scorpion fish, expertly camouflaged against the rocks. Taken with only a red filter on a GoPro HERO4

---