The Happy Yellow Fish has swum around the south/east England coast up to Norfolk, but didn't find any caches there. It went back down south and then up the River Thames to London, only to find out that the water here is badly polluted. What an unhealthy place for a fish!
Luckily, the Happy Yellow Fish has met another fish in London: TONGARIRO, a Rainbow Trout from New Zealand (TB99AF). They became friends and decided to leave London and swim to another country, somewhere far far away...... stay tuned to find out where :)