From the pre observation it was found that there was a learner, Bunga, who was very unusual. She was shaking and speaking inaudibly when she sat in English classroom. Pre investigation has been done before this study was conducted. In the pre investigation the researchers gave foreign language classroom anxiety scale questionnaire to 50 learners. Bunga has got the highest score in her anxiety questionnaire. Therefore, Bunga was considered as an anxious language learner that was needed to be studied further. The aim of this study was to investigate factors that contribute to foreign language anxiety possessed by Bunga in learning Maritime English which have made her different with other learners. The result of the study showed that there were some factors attributed to her foreign language anxiety, they were: classroom activities which related to teacher's instruction and task, such as instructed to read text aloud and speaking in front of the class. Besides classroom activities, it was also found that there were some factors came from herself which made her anxious in learning English, they were: believe about language learning, lack of English proficiency, low self-esteem due to self-comparison, fear of making mistake, and afraid of being laughed by other students.