ST. IVES, CORNWALL.—The ketch Wave, of Gloucester, bound from Padstow for Sydney, in ballast, was seen running for the harbour on the morning of the 21st March. As a strong N.N.E. gale was blowing at the time, and there was a very heavy sea, it was considered advisable, to launch the Life-boat Exeter, in case the vessel should be in need of assistance, the tide being unfavourable for her entering the harbour. The ketch caught the ground on crossing the ridge, but forged over it into deeper water when she was boarded by the Life-boat men, and entered the harbour, again taking the ground, but receiving no apparent damage..