While many of the original petroglyphs were destroyed by development on the island before, tens of thousands remain for us to enjoy even today. To help protect the petroglyphs from further destruction while still making them accessible to visitors, a boardwalk has been constructed "above the ground surface, elevating a pathway upon which visitors could walk and view a section of the extensive area and variety of petroglyphs at the site," according to the NPS.

Feel free to hike along the boardwalk, marvel at the incredible history, and take photos of these stunning petroglyphs. But whatever you do, don't touch them or touch the rock whatsoever. Any rubbing or disruption only accelerates the erosion.

Sources: https://www.nps.gov/havo/learn/historyculture/puuloa.htm https://www.nps.gov/havo/planyourvisit/hikedaypuuloa.htm https://www.lovebigisland.com/puu-loa-petroglyph-field/ https://morethanjustparks.com/puuloa-petroglyphs/