so just another little idea I had.
The starting signal was released and without any hesitation Sanji jumped in. He didn't bother to use any magic or magical items as he knew his strong legs and experience swimming could easily take him to the bottom of the lake in time.
...
Everyone watched with bated breath. Waiting to see who would be the first person to rise with their hostage.
Everyone gasped in shock as ten minutes into the contest Sanji came out of the water completley soaked and very, very angry.
"And where would your hostage be?" Dumbledore asked believing the man to have failed.
Sanji glared at the ld man and finally growled out "that shitty marimo can save himself." And then Sanji stomped away muttering about how unfair it was that he didn't get a gorgeous female hostage to rescue.