Osemsmerovka č. 9 158 - What does an island and the letter T have in common?

P S C O R E T N H N L E S Y B F L K O S E S U A P I T S N R S R A I R T V M H T Q A O A E T R A T E E A I E I U T R L T I N M W E R K F D T I R C G O C R O W D G M A F C D N E H O K O L E I P A R E T U P M O C E T P C U E R G E P M U R O S R A I N G N K W G C S C N R T I L D I A S E D H U H F O D O C U F R U I T A R I L T L E R R C O P G O I Y D I C I G A M A L O H B N N F C A R A V A N F A T O W E G T I F E N E B A T C R T G R O U P I L U T E R