As the weather warms and summer approaches, many of us are looking forward to getting into the ocean. Professor Rob Brander, aka 'Dr Rip', is a coastal scientist, beach safety researcher and science communicator in the School of Biological, Earth and Environmental Sciences at UNSW Sydney in Sydney. His book Dr Rip's Essential Beach Book: Everything you need to know about surf, sand and rips dives into the science of waves and currents, how beaches form and behave, how they respond to storms and climate change, as well as some less common hazards including tsunamis and sharks.