A C1/C2 level ESL course is designed for students who have already achieved a high level of proficiency in English and want to further refine their language skills to near-native level. The specific objectives of such a course will depend on the needs and goals of the students, but in general, the following objectives are common:

1. Developing advanced language skills: At this level, students should be able to use English fluently, accurately, and effectively in a wide range of contexts. The course aims to help students refine their grammar, syntax, vocabulary, and idiomatic expressions, and to enhance their reading, writing, listening, and speaking skills.

2. Fostering critical thinking and analysis: The course should encourage students to think critically and analytically in English, to evaluate complex texts, arguments, and ideas, and to express their own opinions, arguments, and ideas in a sophisticated and nuanced way.

3. Improving intercultural competence: At this level, students should be able to interact with native speakers and people from different cultural backgrounds in a sensitive and appropriate way. The course aims to help students understand the cultural nuances of English-speaking societies and to communicate effectively in intercultural contexts.

4. Preparing for academic and professional settings: Depending on the needs of the students, the course may include preparation for academic or professional contexts, such as writing academic papers, conducting research, delivering presentations, or participating in debates.

5. Fostering independent learning: Students are encouraged to take responsibility for their own learning and to develop study skills that will help them continue to improve their English proficiency outside of the classroom.

Overall, the objective of a C1/C2 level ESL course is to help students achieve near-native fluency and accuracy in English, to enable them to interact with confidence in a wide range of social and professional contexts, and to prepare them for academic or professional success in an English-speaking environment.