As recreational restrictions on the River Murray start to ease, the Opposition is calling on Peter Malinauskas to provide clarity and transparency over exactly what informed the snap decision. 

While the safe removal of restrictions is welcomed, the Malinauskas Labor Government hasn't provided any details as to what information led to this outcome.

It means river communities are still being left in the dark over when further restrictions are likely to be wound back, and local businesses and residents are unable to properly plan ahead during their peak tourism season.

The Opposition has been calling on the Malinauskas Labor Government to declare a specific trigger point - such as a flow rate - at which restrictions will be lifted.

Leader of the Opposition David Speirs will visit Mannum and Murray Bridge today. 

Shadow Minister for Water Resources and the River Murray Nicola Centofanti said river communities deserve certainty, but the lack of detail behind this latest move isn't providing that.

"River residents and businesses deserve to know the facts, but right now Peter Malinauskas is keeping them in the dark," she said.

"It's important for the community to know what criteria was used to wind back restrictions and what will guide future changes.

"The bans on recreational activities have been very tough on our river communities - the very least Peter Malinauskas can do is keep them well informed."

Member for Chaffey Tim Whetstone said Labor's announcement raises more questions than answers.

"We don't want to see these recreational restrictions on the River Murray in place one day longer than necessary, but it's important we know exactly what guided this decision," Mr Whetstone said. 

"Who exactly is on the committee informing the decision makers? And what kind of data are they relying on? 

"Communication around these restrictions has been incredibly confusing, adding extra stress during an already trying time for our river communities." 

Member for Hammond Adrian Pederick said calls for a specific threshold for restrictions to be eased have been ignored by the Malinauskas Labor Government.

"A specific measure at which point the river will be reopened would give local residents some much needed certainty, but so far the decision-making process has been very vague," Mr Pederick said.

"We understand this must be done in a safe and staggered way, but why not keep River Murray residents in the know?"