From dawn to dusk, Sanam Luang -- the country's ceremonial ground in front of the Grand Palace -- was filled with a sea of yellow.

The colour came from shirts people wore to express their love and respect for King Bhumibol Adulyadej.

They came to participate in an all-day round of ceremonial events to mark the second year of King Bhumibol's passing. Since early dawn, they came to offer alms to monks.

A wreath-laying ceremony in honour of the late King Bhumibol was also held at Sanam Luang on Saturday morning.

From afternoon, a sea of people walked to Sanam Luang, waiting to participate in candle vigils scheduled for 6pm.

Heavy rain during the afternoon did not deter them from showing their love for the late king. They wanted to make sure they could participate.

People interviewed by the Bangkok Post admitted the ground has a special meaning in their hearts.

Last year, the royal cremation took place at the Sanam Luang ground and people came to evoke their fond memories about King Bhumibol.

"King Bhumibol has always been in my heart. Yet I felt the need to come here in person to pay him respect ... to feel the vibe," said Prakong Srisurat 57, an office employee from Prawet district, who came to Sanam Luang in the early afternoon.

"It's heartwarming to see that even after two years, a sea of people still gather here to honour him," said 55-year-old teary-eyed Boonyanuch Boonpok, a civil servant from the Ministry of Industry, joined by her 27-year-old daughter Chayanid.

She had travelled from Bang Sue district to pay her respects.

"I just had to come because I want to be around other like-minded Thais, " Ms Chayanid said.

Standing on Sanam Luang -- right in front of the Grand Palace and, last year, where the Royal Cremation took place -- made her feel close to him again, said Ms Chayanid, who last year came to pay her respects at King Bhumibol's funeral held at the Royal Dusit Maha Prasat Throne Hall.

The event at Sanam Luang is one of numerous events held across the country and overseas to honour the former monarch.

At Siriraj Hospital where King Bhumibol stayed for medical treatment before he passed away, people joined nurses, doctors and health personnel to give alms to 89 Buddhist monks at the country's oldest hospital in Bangkok and observed an 89-second silence in front of the portrait of the late King.

Eighty-nine has become the number people adopt to honour the former King, who passed away about seven weeks before his 89th birthday on Dec 5.

Various state agencies nationwide also held similar merit-making events.

Across the country, people rose early to go to temples and provincial halls to give alms to monks. Several shops offered free food for people to pay tribute to King Bhumibol.

People also expressed their love for the late King in social networking sites. The phrases "Forever in Our Hearts" and "Still on My Mind" -- the names of songs composed by the late king -- became popular hashtags across Facebook.

Many said King Bhumibol is still alive in their hearts while others regard him as a model for making contributions to the country.