Tong'an Castle is just one of the landmarks located 15.2 mi (24.5 km) from central Lianjiang, so you might want to stop by for a few pics during your trip.
You can spend an afternoon browsing the exhibits at Aquatic Museum of Guangdong Ocean University during your trip to Zhanjiang. Take in the museums and hot springs in the area.
Seeing the sights doesn't have to break the bank. For some things to do in Leizhou, you can head to landmarks like Haikang Museum to snap some photos and explore.