You are looking for a small vial which is embedded in natural camo. The cache is a little way up the bank which will be slippery when wet.
Please leave the vial in place when removing the lid to sign the log and replace as found.
Guerr srrg ybat, rnfvyl ivfvoyr sebz gur terrajnl. Qba'g sbetrg gb fvta gur ybt.
Cyrnfr qb abg erzbir gur ivny sebz vgf ubfg.