Japan isn’t exactly a nation of sun worshippers. Many women take painstaking steps to shield their skin from the sun, wearing sunblock, carrying parasols and donning long sleeves on even the hottest of days. But on Zushi Beach, an hour south of Tokyo by train, there is definitely a core contingency of die-hard beachgoers for whom no tan is too dark and no bikini too tiny. As one of the best places to scope out sand and surf styles, this summer offered up an abundance of fringed tops, cutoff denim shorts and lacy or ruffled swimsuits in bold pinks, oranges and greens. Many women — some with sizable tattoos — layered two bikini bottoms, incorporating an accent color or pattern into their look.