- The Duke and Duchess of Sussex have met with Tonga's prime minister in the country's capital Nuku'alofa
- Mother-to-be Meghan arrived for the meeting wearing a striped print dress by an Australian designer
- They later ventured to the Fa'onelua Centre to take part in a noisy celebration of Tongan youth and culture
- Following that visit, they headed to the unveiling of The Queen's Commonwealth Canopy at Tupou College
- The royal couple had a morning full of engagements in Tonga before they headed back to Sydney, Australia
The pregnant Duchess of Sussex has dazzled in a green and white cotton designer dress as she and her husband met with Tonga's Prime Minister and his deputy as the latest stage of their marathon 16-day royal tour.
Prince Harry and Meghan Markle dropped by the St George Government Buildings in the country's capital Nuku'alofa for an early morning call on Akilisi Pohiva, deputy Semisi Lafu Kioa Sika and the cabinet.
The mother-to-be was wearing a striped print dress by Australian-born fashion designer Martin Grant, brushing off the minor fashion faux pas she made when she arrived in Tonga a day earlier in a striking red dress.
The Duchess, 37, still had the label hanging from her Self Portrait dress as she walked along a red carpet to the sounds of local singers wearing grass skirts at Fua'amotu Airport in Nuku'alofa on Thursday.
The couple were also met by more than 50 civil servants wearing red and black shirts and traditional outfits as they entered the St George Government Buildings for the meeting, most of which was held in private.
One child held a sign saying 'free hugs' which drew a smile from Meghan after she spotted it.
The couple then took the lift to meet the Prime Minister, with Prince Harry asking 'Did you enjoy last night? The entertainment was very good'.
He was referring to a display of traditional Tongan entertainment after a formal dinner with King Tupou VI.The Duke and Duchess were later garlanded with necklaces made from Fa and Puatonga flowers as they arrived at the Fa'onelua Centre to celebrate Tongan youth and culture.
The royals each sat on throne-like chairs in the middle of the room, where they were presented with the necklaces, before Princess Angelika gave a speech after a prayer was read.
The princess described the royal couple as 'an inspiration to the youth of the Commonwealth' as they were 'shining a light on youth empowerment'.
'Your visit today draws attention to the fundamentals of today's youth, youth leadership, youth empowerment and addressing the social, economic and environmental challenges of our region,' she said.
She added the couple's visit to the South Pacific - what Captain James Cook had called 'Friendly Islands' - had inspired the youth in Tonga to be 'the best they can be'.
The Queen's visit to the island in 1953 had been the 'historical highlight' in relations between Britain and Tonga, the princess said in her speech.
The princess, who is a diplomat herself, also noted the visit by the Duke and Duchess was the 'ultimate diplomacy'.
Prince Harry and Meghan also joined with the princess and Prince Ata in being shown locally-made products, including traditional mats and 'tapa' cloth, carvings and bracelets made from whale bone and wood.
Once outside the centre, the couple were each given a Taovala each - an outfit added onto clothing. The Taovala signifies Tongan respect to the higher ranks.
They then met local Tongan traders and craftsmen as the Masani group of singers and dancers performed island music and songs, with Prince Harry appearing to do a little jig as the music started.
The Duke and Duchess were given a picture of the Royal Tongan Motif, Fata O Tu'i Tongan. Uili Lousi, art and artisan, said, 'They said they will put it in their home'.
The Duchess then made a quick dress change as she and her husband continued their official royal engagements in Tonga.
Meghan slipped into a blue Veronica Beard dress as the pair attended the dedication of two forest areas to The Queen's Commonwealth Canopy at Tupou College.
'My wife and I are so pleased to be here today to mark the dedication of not one but two forest areas to The Queen's Commonwealth Canopy initiative, which started in 2015 in honour of my grandmother's lifetime of service to the Commonwealth,' Prince Harry said in a speech at the college.
'Tonga is leading by example and understands deeply the impact of environmental changes because they directly affect these islands. Planting trees and conserving forests helps us in so many ways.
'It is a simple but effective way to restore and repair our environment, clean the air, protect habitat and enhance our health and wellbeing.'
Before they left the Duke and Duchess were driven to the Royal Palace for an audience with King Tupou VI and his wife Queen Nanasipau'u.
The couple entered the wooden, whitewashed palace and spent around 15 minutes inside with Tonga's royals.
Prince Harry had changed into a suit following his excursion to the rainforest but Meghan was still in her blue Veronica Beard shirt dress.
The Duke and Duchess signed a visitor's book before they left and then posed outside with the King and Queen for photographers.
They also shook hands with the Tongan ruler and his wife, Meghan, noticeably curtsying to the Queen.
The couple have now departed for Sydney, where they will attend the Australian Geographic Society Awards on Friday night.
The next day, the royals will watch the Invictus Games wheelchair basketball final and then the closing ceremony of the Games which were started by Prince Harry.
Tonga is the third country the royals have visited on their first tour as a married couple, after travelling to Australia and Fiji.