Balcony drain

[Mag31]

Hi all, I have a drain under a 600mm x 600mm tile in the balcony. Is there a tool I can use to lift the tile so that I can clean the drain?

I've tried the Trojan Double Cup Suction Holder available at Bunnings but it doesnt really stick since its a textured/ rough tile. 

https://www.bunnings.com.au/trojan-double-cup-suction-holder_p0319708?store=6042&gad_source=1&gclid=...