You can’t make such firm statements on your recollection of what happened in the 80s. It’s very clear, supported by data, that waterways are safer and there are less drownings now. You can just ask an AI and it takes a second:
“Many more in the 80s. The improvement is quite significant:
UK drowning fatalities across the five-year period 1985–1989 roughly halved compared to 2015–2019, with the rate dropping from 4.79 to 2.04 deaths per 100,000 people. By 2022, the rate had fallen to fewer than 1 in every 100,000. 
In 24 out of 37 years between 1983 and 2020, the UK saw a year-on-year decrease in the drowning rate.  Today, around 250 people die from drowning per year on average — roughly one every 1.5 days. 
The likely reasons for the long-term decline include better water safety education, improved lifeguard provision, fencing and signage around dangerous water, and better emergency response.
One recent caveat: there has been a slight uptick in drowning deaths in recent years, possibly linked to the boom in wild and outdoor swimming.  But even so, the numbers remain far below what they were in the 1980s.”