Chloe's grandparents, April and Gordon, said they could not understand claims that there were no lifeguards on duty who could have pulled her from the water.
More top news
Joshua beat the older, more experienced boxer in front of 90,000 fans in Wembley Stadium.
Dry for most of the night. Rain in the southwest by dawn.
Host Paddy McGuinness tweeted a tribute to contestant Charlie Watkins whose date was featured in Saturday's episode.