BLNZ southern South Island extension manager Olivia Ross said there had been five workshops scheduled originally, but demand had meant eight were held throughout Southland.
About 120 southern farmers attended the workshops, which walked them through the hearings process.
"Initially it was very daunting [for some farmers]. It's very out of comfort zones," Miss Ross said.
Farmers wanted their voices to be heard and wanted to know the best way of making that happen, she said.
BLNZ had also run submission workshops last year, so holding the hearing workshops had helped follow through the process with farmers, Miss Ross said.
BLNZ South Island environment policy manager Julia Beijeman had helped farmers throughout the whole process, she said.
"We want to ensure that whatever the final decision is, we've helped farmers get their word out there."
Submitters who have chosen to speak have 10 minutes each to talk to the hearings panel.