This is the latest I saw on ABC news:
A fresh batch of divers has come in. It takes 6 hours for one experienced diver to get all the way in. That is 12 hours round trip for one diver to go in & come back out at the end of a day.
That is not including the hours of work they do once they are inside.
There are approximately 110 people working on this now, between reservists, active duty navy seals, doctors, psychologists and other types of workers.
Fresh oxygen is being pumped in to where the boys are. Since the area they are in is cut off by water, they in an air pocket. So they want to make sure the boys aren't just breathing & recirculating their own air.
Street construction-type jack hammers have been brought in, which are cutting long trenches along the cave floor. Then they lay pipes in the trenches to drain the water away into a dam they are building outside. That has been channeling the water away much faster than just using the many pumps they also have.
They are really hoping to get the water down below the neck level of the height of an average man. This way, they can put the boys each on rafts and float them relay race style along from one guy to another. A dozen or so life vests were shown being carried in.
They are really hoping to do this soon as more rain is expected in the next 24 hours.