chao cac ban, co ban nao duoc tham hiem dai duong bao gio chua?dai duong that la dep phai khong cac ban?dai duong menh mong bao la ,nhieu dong vat sinh song va hon nua duoi day dai duong co rat nhieu dieu ma chung ta chua tung biet den.vay thi minh va cac ban cung di tham hiem dai duong voi anh soc nhi nhe, di thoi nao cac ban oi.