A cave you can just swim through.
Goa (Indonesian for 'cave') is a small open cavern formed where the Padang Bai reef wall has eroded into an arch. The cavern entrance sits at 12 m and exits at the same depth on the other side — no true overhead penetration, no specialty cert required.
Inside the cavern, local divers placed a small Hindu shrine with deity statues — the underwater echo of the temple ritual. The cavern walls are lined with soft coral and sponges. Glassfish swirl in the entrance, moray eels hide in the cracks, and you'll often spot banded sea krait resting on ledges.
"Cave-dive aesthetic, open-water exit always in sight."
AOWD recommended for the depth (18 m) but the cavern itself is forgiving. Pair with Jepun (5 minutes' boat away) for a Padang-Bai-statues double.