Visiting hours for Cynthia A. Hamiwka of Springs, who died on Saturday at the age of 77, will be tomorrow from 1 to 3 and 6 to 8 p.m. at the Yardley and Pino Funeral Home in Sag Harbor. Burial with a graveside service will be on Saturday at Raymond Hill Cemetery in Carmel, N.Y. An obituary will appear in a future issue.