Charles was exhiled because he was leaving the Island on a regular basis. Penny was even conceived on one of these trips. How was Charles leaving the Island that whole time? This was before "The Purge", so the Others didn't have access to the sub yet. We also know that Richard left the Island to go visit Locke as a boy. How were they doing this? Any ideas? Also, can anyone think of any other pre-Purge trips taken by Others off the Island?