Meghan changed from a $1595 striped Martin Grant dress she wore earlier in the day into a more casual blue frock to visit Tupou College.
Meghan’s dress was by designer Veronica Beard.
At the college Harry and Meghan were captured on camera clasping hands – a move they have repeated throughout their royal tour.
They were due to dedicate two of the college’s forest reserves to the Queen’s Commonwealth Canopy Project during their visit.
Meghan’s visit to the reserve comes as a surprise as she had missed a forest visit in Fiji as a precautionary measure against mosquitos.
Earlier in the day, Australian fashion stylist Donny Galella gave his verdict on her Martin Grant dress – and told New Idea he was “not a fan”.
“Every one of Meghan’s looks has been perfect so far but this just looks a little ill-fitting,” he said.