Sulphur Banks (Haʻakulamanu)

If you are pregnant or have a respiratory or cardiac condition, NPS advises you to skip this trail. The sulfur dioxide and hydrogen sulfide gases venting here are at low concentrations but they are real. The site is also part of the Pele sacred geography along the Kīlauea rim; do not collect mineral samples for souvenirs, do not leave offerings unless trained to do so. Stay on the boardwalk; the ground around the vents is unstable and corroded.